/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:38:24,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:38:24,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:38:24,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:38:24,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:38:24,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:38:24,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:38:24,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:38:24,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:38:24,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:38:24,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:38:24,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:38:24,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:38:24,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:38:24,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:38:24,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:38:24,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:38:24,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:38:24,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:38:24,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:38:24,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:38:24,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:38:24,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:38:24,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:38:24,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:38:24,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:38:24,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:38:24,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:38:24,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:38:24,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:38:24,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:38:24,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:38:24,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:38:24,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:38:24,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:38:24,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:38:24,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:38:24,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:38:24,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:38:24,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:38:24,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:38:24,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:38:24,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:38:24,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:38:24,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:38:24,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:38:24,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:38:24,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:38:24,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:38:24,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:38:24,322 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:38:24,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:38:24,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:38:24,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:38:24,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:24,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:38:24,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:38:24,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:38:24,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:38:24,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:38:24,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:38:24,486 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:38:24,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i [2022-09-16 10:38:24,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f8454b/9977bfb36d6741efbf52097b0242d140/FLAG7197de7dd [2022-09-16 10:38:24,927 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:38:24,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i [2022-09-16 10:38:24,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f8454b/9977bfb36d6741efbf52097b0242d140/FLAG7197de7dd [2022-09-16 10:38:25,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f8454b/9977bfb36d6741efbf52097b0242d140 [2022-09-16 10:38:25,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:38:25,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:38:25,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:25,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:38:25,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:38:25,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b15450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25, skipping insertion in model container [2022-09-16 10:38:25,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:38:25,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:38:25,544 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:38:25,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-09-16 10:38:25,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-09-16 10:38:25,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-09-16 10:38:25,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-09-16 10:38:25,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-09-16 10:38:25,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-09-16 10:38:25,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:25,740 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:38:25,751 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:38:25,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-09-16 10:38:25,775 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-09-16 10:38:25,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-09-16 10:38:25,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-09-16 10:38:25,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-09-16 10:38:25,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-09-16 10:38:25,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:25,823 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:38:25,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25 WrapperNode [2022-09-16 10:38:25,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:25,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:25,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:38:25,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:38:25,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,870 INFO L138 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 127 [2022-09-16 10:38:25,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:25,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:38:25,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:38:25,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:38:25,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:38:25,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:38:25,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:38:25,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:38:25,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (1/1) ... [2022-09-16 10:38:25,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:25,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:25,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:38:25,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:38:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:38:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:38:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:38:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:38:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:38:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:38:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-09-16 10:38:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-09-16 10:38:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:38:25,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:38:25,982 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:38:26,175 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:38:26,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:38:26,530 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:38:26,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:38:26,535 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:38:26,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:26 BoogieIcfgContainer [2022-09-16 10:38:26,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:38:26,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:38:26,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:38:26,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:38:26,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:38:25" (1/3) ... [2022-09-16 10:38:26,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703a9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:26, skipping insertion in model container [2022-09-16 10:38:26,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:25" (2/3) ... [2022-09-16 10:38:26,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703a9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:26, skipping insertion in model container [2022-09-16 10:38:26,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:26" (3/3) ... [2022-09-16 10:38:26,569 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-09-16 10:38:26,576 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:38:26,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:38:26,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-09-16 10:38:26,584 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:38:26,671 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 10:38:26,692 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 161 places, 166 transitions, 340 flow [2022-09-16 10:38:26,788 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3314 states, 3252 states have (on average 2.1411439114391144) internal successors, (6963), 3313 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:26,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:38:26,808 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37c24e9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:38:26,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-09-16 10:38:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 3314 states, 3252 states have (on average 2.1411439114391144) internal successors, (6963), 3313 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:38:26,827 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:26,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:26,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 670776942, now seen corresponding path program 1 times [2022-09-16 10:38:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:26,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358198136] [2022-09-16 10:38:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:26,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:27,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:27,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358198136] [2022-09-16 10:38:27,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358198136] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:27,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:27,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:27,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997774908] [2022-09-16 10:38:27,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:27,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:27,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:27,067 INFO L87 Difference]: Start difference. First operand has 3314 states, 3252 states have (on average 2.1411439114391144) internal successors, (6963), 3313 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:27,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:27,168 INFO L93 Difference]: Finished difference Result 5456 states and 11006 transitions. [2022-09-16 10:38:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:27,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-09-16 10:38:27,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:27,214 INFO L225 Difference]: With dead ends: 5456 [2022-09-16 10:38:27,214 INFO L226 Difference]: Without dead ends: 5450 [2022-09-16 10:38:27,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:27,218 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 96 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:27,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-09-16 10:38:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5072. [2022-09-16 10:38:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 4986 states have (on average 2.103890894504613) internal successors, (10490), 5071 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 10490 transitions. [2022-09-16 10:38:27,408 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 10490 transitions. Word has length 43 [2022-09-16 10:38:27,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:27,409 INFO L495 AbstractCegarLoop]: Abstraction has 5072 states and 10490 transitions. [2022-09-16 10:38:27,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 10490 transitions. [2022-09-16 10:38:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-09-16 10:38:27,415 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:27,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:27,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:38:27,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:27,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:27,417 INFO L85 PathProgramCache]: Analyzing trace with hash -660964209, now seen corresponding path program 1 times [2022-09-16 10:38:27,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:27,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004940071] [2022-09-16 10:38:27,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:27,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:27,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:27,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004940071] [2022-09-16 10:38:27,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004940071] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:27,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:27,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-16 10:38:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125482716] [2022-09-16 10:38:27,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:27,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:38:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:38:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:38:27,731 INFO L87 Difference]: Start difference. First operand 5072 states and 10490 transitions. Second operand has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:28,509 INFO L93 Difference]: Finished difference Result 8574 states and 17661 transitions. [2022-09-16 10:38:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 10:38:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-09-16 10:38:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:28,539 INFO L225 Difference]: With dead ends: 8574 [2022-09-16 10:38:28,540 INFO L226 Difference]: Without dead ends: 8574 [2022-09-16 10:38:28,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:38:28,541 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1594 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:28,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 2375 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8574 states. [2022-09-16 10:38:28,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8574 to 5524. [2022-09-16 10:38:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 5438 states have (on average 2.1022434718646563) internal successors, (11432), 5523 states have internal predecessors, (11432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 11432 transitions. [2022-09-16 10:38:28,744 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 11432 transitions. Word has length 50 [2022-09-16 10:38:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:28,745 INFO L495 AbstractCegarLoop]: Abstraction has 5524 states and 11432 transitions. [2022-09-16 10:38:28,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 11432 transitions. [2022-09-16 10:38:28,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:38:28,749 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:28,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:28,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:38:28,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:28,750 INFO L85 PathProgramCache]: Analyzing trace with hash 245478776, now seen corresponding path program 1 times [2022-09-16 10:38:28,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:28,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864852531] [2022-09-16 10:38:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:28,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:28,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:28,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864852531] [2022-09-16 10:38:28,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864852531] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:28,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:28,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-16 10:38:28,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535815647] [2022-09-16 10:38:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:28,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 10:38:28,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 10:38:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:38:28,980 INFO L87 Difference]: Start difference. First operand 5524 states and 11432 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:29,632 INFO L93 Difference]: Finished difference Result 6482 states and 13397 transitions. [2022-09-16 10:38:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:38:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-09-16 10:38:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:29,652 INFO L225 Difference]: With dead ends: 6482 [2022-09-16 10:38:29,652 INFO L226 Difference]: Without dead ends: 6482 [2022-09-16 10:38:29,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:38:29,653 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1200 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:29,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 2057 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6482 states. [2022-09-16 10:38:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6482 to 6158. [2022-09-16 10:38:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6158 states, 6072 states have (on average 2.0907444005270093) internal successors, (12695), 6157 states have internal predecessors, (12695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 12695 transitions. [2022-09-16 10:38:29,754 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 12695 transitions. Word has length 51 [2022-09-16 10:38:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:29,756 INFO L495 AbstractCegarLoop]: Abstraction has 6158 states and 12695 transitions. [2022-09-16 10:38:29,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 12695 transitions. [2022-09-16 10:38:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:38:29,758 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:29,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:29,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:38:29,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:29,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash 984946444, now seen corresponding path program 1 times [2022-09-16 10:38:29,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:29,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775059816] [2022-09-16 10:38:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:29,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:29,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:29,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775059816] [2022-09-16 10:38:29,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775059816] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:29,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:29,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-16 10:38:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916742378] [2022-09-16 10:38:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:29,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:38:29,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:29,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:38:29,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:38:29,931 INFO L87 Difference]: Start difference. First operand 6158 states and 12695 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:30,606 INFO L93 Difference]: Finished difference Result 8634 states and 17783 transitions. [2022-09-16 10:38:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 10:38:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-09-16 10:38:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:30,650 INFO L225 Difference]: With dead ends: 8634 [2022-09-16 10:38:30,650 INFO L226 Difference]: Without dead ends: 8634 [2022-09-16 10:38:30,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:38:30,672 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1455 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:30,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 2475 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-09-16 10:38:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 6192. [2022-09-16 10:38:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6192 states, 6106 states have (on average 2.0905666557484444) internal successors, (12765), 6191 states have internal predecessors, (12765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 12765 transitions. [2022-09-16 10:38:30,835 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 12765 transitions. Word has length 51 [2022-09-16 10:38:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:30,835 INFO L495 AbstractCegarLoop]: Abstraction has 6192 states and 12765 transitions. [2022-09-16 10:38:30,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 12765 transitions. [2022-09-16 10:38:30,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:38:30,837 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:30,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:30,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:38:30,838 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash -551530824, now seen corresponding path program 1 times [2022-09-16 10:38:30,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:30,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076468907] [2022-09-16 10:38:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:30,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:30,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:30,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076468907] [2022-09-16 10:38:30,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076468907] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:30,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:30,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679407094] [2022-09-16 10:38:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:30,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:30,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:30,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:30,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:30,874 INFO L87 Difference]: Start difference. First operand 6192 states and 12765 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:30,911 INFO L93 Difference]: Finished difference Result 7788 states and 16064 transitions. [2022-09-16 10:38:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:30,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-09-16 10:38:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:30,930 INFO L225 Difference]: With dead ends: 7788 [2022-09-16 10:38:30,930 INFO L226 Difference]: Without dead ends: 7788 [2022-09-16 10:38:30,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:30,931 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 63 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:30,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 335 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2022-09-16 10:38:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7382. [2022-09-16 10:38:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7382 states, 7296 states have (on average 2.1086896929824563) internal successors, (15385), 7381 states have internal predecessors, (15385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 15385 transitions. [2022-09-16 10:38:31,068 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 15385 transitions. Word has length 60 [2022-09-16 10:38:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:31,068 INFO L495 AbstractCegarLoop]: Abstraction has 7382 states and 15385 transitions. [2022-09-16 10:38:31,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 15385 transitions. [2022-09-16 10:38:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 10:38:31,069 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:31,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:31,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:38:31,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:31,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash -958671723, now seen corresponding path program 1 times [2022-09-16 10:38:31,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:31,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651436286] [2022-09-16 10:38:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:31,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:31,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:31,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651436286] [2022-09-16 10:38:31,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651436286] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:31,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:31,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 10:38:31,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863866896] [2022-09-16 10:38:31,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:31,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:38:31,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:38:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:31,168 INFO L87 Difference]: Start difference. First operand 7382 states and 15385 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:31,543 INFO L93 Difference]: Finished difference Result 11053 states and 22595 transitions. [2022-09-16 10:38:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:38:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-09-16 10:38:31,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:31,561 INFO L225 Difference]: With dead ends: 11053 [2022-09-16 10:38:31,561 INFO L226 Difference]: Without dead ends: 11053 [2022-09-16 10:38:31,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:38:31,562 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 1102 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:31,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3605 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:38:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11053 states. [2022-09-16 10:38:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11053 to 8574. [2022-09-16 10:38:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8574 states, 8488 states have (on average 2.117106503298775) internal successors, (17970), 8573 states have internal predecessors, (17970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8574 states to 8574 states and 17970 transitions. [2022-09-16 10:38:31,698 INFO L78 Accepts]: Start accepts. Automaton has 8574 states and 17970 transitions. Word has length 61 [2022-09-16 10:38:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:31,699 INFO L495 AbstractCegarLoop]: Abstraction has 8574 states and 17970 transitions. [2022-09-16 10:38:31,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8574 states and 17970 transitions. [2022-09-16 10:38:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:38:31,701 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:31,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:31,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:38:31,701 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:31,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:31,702 INFO L85 PathProgramCache]: Analyzing trace with hash 345947942, now seen corresponding path program 1 times [2022-09-16 10:38:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:31,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969019614] [2022-09-16 10:38:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:31,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969019614] [2022-09-16 10:38:31,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969019614] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:31,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:31,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 10:38:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043612288] [2022-09-16 10:38:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:31,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:38:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:31,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:38:31,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:31,826 INFO L87 Difference]: Start difference. First operand 8574 states and 17970 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:32,143 INFO L93 Difference]: Finished difference Result 12106 states and 24881 transitions. [2022-09-16 10:38:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:38:32,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-09-16 10:38:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:32,181 INFO L225 Difference]: With dead ends: 12106 [2022-09-16 10:38:32,181 INFO L226 Difference]: Without dead ends: 12106 [2022-09-16 10:38:32,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:38:32,200 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1664 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:32,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 3017 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:38:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12106 states. [2022-09-16 10:38:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12106 to 9752. [2022-09-16 10:38:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9752 states, 9666 states have (on average 2.1258017794330644) internal successors, (20548), 9751 states have internal predecessors, (20548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9752 states to 9752 states and 20548 transitions. [2022-09-16 10:38:32,599 INFO L78 Accepts]: Start accepts. Automaton has 9752 states and 20548 transitions. Word has length 62 [2022-09-16 10:38:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:32,600 INFO L495 AbstractCegarLoop]: Abstraction has 9752 states and 20548 transitions. [2022-09-16 10:38:32,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 9752 states and 20548 transitions. [2022-09-16 10:38:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:38:32,602 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:32,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:32,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:38:32,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1522350596, now seen corresponding path program 1 times [2022-09-16 10:38:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957649172] [2022-09-16 10:38:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:32,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:32,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957649172] [2022-09-16 10:38:32,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957649172] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:32,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:32,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:32,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375949244] [2022-09-16 10:38:32,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:32,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:32,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:32,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:32,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:32,666 INFO L87 Difference]: Start difference. First operand 9752 states and 20548 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:32,707 INFO L93 Difference]: Finished difference Result 10564 states and 22060 transitions. [2022-09-16 10:38:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-09-16 10:38:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:32,728 INFO L225 Difference]: With dead ends: 10564 [2022-09-16 10:38:32,728 INFO L226 Difference]: Without dead ends: 10564 [2022-09-16 10:38:32,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:32,728 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 61 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:32,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 335 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:32,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2022-09-16 10:38:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 10119. [2022-09-16 10:38:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10119 states, 10033 states have (on average 2.1288747134456294) internal successors, (21359), 10118 states have internal predecessors, (21359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10119 states to 10119 states and 21359 transitions. [2022-09-16 10:38:32,871 INFO L78 Accepts]: Start accepts. Automaton has 10119 states and 21359 transitions. Word has length 64 [2022-09-16 10:38:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:32,871 INFO L495 AbstractCegarLoop]: Abstraction has 10119 states and 21359 transitions. [2022-09-16 10:38:32,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 10119 states and 21359 transitions. [2022-09-16 10:38:32,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:32,873 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:32,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:32,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:38:32,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1148664212, now seen corresponding path program 1 times [2022-09-16 10:38:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:32,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804121637] [2022-09-16 10:38:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804121637] [2022-09-16 10:38:33,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804121637] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:33,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:33,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:33,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286738813] [2022-09-16 10:38:33,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:33,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:33,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:33,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:33,218 INFO L87 Difference]: Start difference. First operand 10119 states and 21359 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:34,939 INFO L93 Difference]: Finished difference Result 14930 states and 31524 transitions. [2022-09-16 10:38:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:38:34,939 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:34,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:34,963 INFO L225 Difference]: With dead ends: 14930 [2022-09-16 10:38:34,963 INFO L226 Difference]: Without dead ends: 14930 [2022-09-16 10:38:34,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=431, Invalid=1051, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:38:34,965 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1502 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:34,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 3680 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14930 states. [2022-09-16 10:38:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14930 to 11719. [2022-09-16 10:38:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11719 states, 11633 states have (on average 2.141751912662254) internal successors, (24915), 11718 states have internal predecessors, (24915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11719 states to 11719 states and 24915 transitions. [2022-09-16 10:38:35,186 INFO L78 Accepts]: Start accepts. Automaton has 11719 states and 24915 transitions. Word has length 71 [2022-09-16 10:38:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:35,186 INFO L495 AbstractCegarLoop]: Abstraction has 11719 states and 24915 transitions. [2022-09-16 10:38:35,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11719 states and 24915 transitions. [2022-09-16 10:38:35,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:35,194 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:35,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:35,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:38:35,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:35,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1397624760, now seen corresponding path program 2 times [2022-09-16 10:38:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:35,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953642404] [2022-09-16 10:38:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:35,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:35,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:35,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953642404] [2022-09-16 10:38:35,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953642404] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:35,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:35,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:35,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247722062] [2022-09-16 10:38:35,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:35,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:35,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:35,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:35,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:35,558 INFO L87 Difference]: Start difference. First operand 11719 states and 24915 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:37,529 INFO L93 Difference]: Finished difference Result 17287 states and 36818 transitions. [2022-09-16 10:38:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:38:37,529 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:37,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:37,557 INFO L225 Difference]: With dead ends: 17287 [2022-09-16 10:38:37,557 INFO L226 Difference]: Without dead ends: 17287 [2022-09-16 10:38:37,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=532, Invalid=1190, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:38:37,558 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1566 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:37,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 3289 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17287 states. [2022-09-16 10:38:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17287 to 11725. [2022-09-16 10:38:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11725 states, 11639 states have (on average 2.1416788383881777) internal successors, (24927), 11724 states have internal predecessors, (24927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 24927 transitions. [2022-09-16 10:38:37,787 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 24927 transitions. Word has length 71 [2022-09-16 10:38:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:37,787 INFO L495 AbstractCegarLoop]: Abstraction has 11725 states and 24927 transitions. [2022-09-16 10:38:37,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 24927 transitions. [2022-09-16 10:38:37,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:37,790 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:37,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:37,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:38:37,790 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:37,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:37,791 INFO L85 PathProgramCache]: Analyzing trace with hash -873256508, now seen corresponding path program 3 times [2022-09-16 10:38:37,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:37,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388627017] [2022-09-16 10:38:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:38,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:38,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388627017] [2022-09-16 10:38:38,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388627017] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:38,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:38,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:38,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377493905] [2022-09-16 10:38:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:38,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:38,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:38,092 INFO L87 Difference]: Start difference. First operand 11725 states and 24927 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:40,039 INFO L93 Difference]: Finished difference Result 18683 states and 39551 transitions. [2022-09-16 10:38:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:38:40,054 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:40,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:40,084 INFO L225 Difference]: With dead ends: 18683 [2022-09-16 10:38:40,085 INFO L226 Difference]: Without dead ends: 18683 [2022-09-16 10:38:40,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=565, Invalid=1241, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:38:40,086 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 1639 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 3338 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:40,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18683 states. [2022-09-16 10:38:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18683 to 11885. [2022-09-16 10:38:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 11799 states have (on average 2.1399271124671584) internal successors, (25249), 11884 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 25249 transitions. [2022-09-16 10:38:40,281 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 25249 transitions. Word has length 71 [2022-09-16 10:38:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:40,282 INFO L495 AbstractCegarLoop]: Abstraction has 11885 states and 25249 transitions. [2022-09-16 10:38:40,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 25249 transitions. [2022-09-16 10:38:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:40,284 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:40,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:40,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:38:40,284 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:40,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:40,285 INFO L85 PathProgramCache]: Analyzing trace with hash -959964404, now seen corresponding path program 4 times [2022-09-16 10:38:40,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:40,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568620016] [2022-09-16 10:38:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:40,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568620016] [2022-09-16 10:38:40,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568620016] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:40,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:40,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:40,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813088234] [2022-09-16 10:38:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:40,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:40,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:40,632 INFO L87 Difference]: Start difference. First operand 11885 states and 25249 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:41,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:41,929 INFO L93 Difference]: Finished difference Result 16837 states and 35699 transitions. [2022-09-16 10:38:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:38:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:41,957 INFO L225 Difference]: With dead ends: 16837 [2022-09-16 10:38:41,957 INFO L226 Difference]: Without dead ends: 16837 [2022-09-16 10:38:41,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:38:41,958 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1597 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:41,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 3070 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:41,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16837 states. [2022-09-16 10:38:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16837 to 11909. [2022-09-16 10:38:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11909 states, 11823 states have (on average 2.1396430685951113) internal successors, (25297), 11908 states have internal predecessors, (25297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11909 states to 11909 states and 25297 transitions. [2022-09-16 10:38:42,163 INFO L78 Accepts]: Start accepts. Automaton has 11909 states and 25297 transitions. Word has length 71 [2022-09-16 10:38:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:42,163 INFO L495 AbstractCegarLoop]: Abstraction has 11909 states and 25297 transitions. [2022-09-16 10:38:42,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 11909 states and 25297 transitions. [2022-09-16 10:38:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:42,166 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:42,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:42,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:38:42,166 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash -435596152, now seen corresponding path program 5 times [2022-09-16 10:38:42,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:42,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573936936] [2022-09-16 10:38:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:42,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:42,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573936936] [2022-09-16 10:38:42,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573936936] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:42,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:42,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412251311] [2022-09-16 10:38:42,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:42,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:42,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:42,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:42,457 INFO L87 Difference]: Start difference. First operand 11909 states and 25297 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:44,247 INFO L93 Difference]: Finished difference Result 20584 states and 43714 transitions. [2022-09-16 10:38:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:38:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:44,286 INFO L225 Difference]: With dead ends: 20584 [2022-09-16 10:38:44,286 INFO L226 Difference]: Without dead ends: 20584 [2022-09-16 10:38:44,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=497, Invalid=1143, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:38:44,290 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1747 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 3878 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:44,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 3878 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:38:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20584 states. [2022-09-16 10:38:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20584 to 11903. [2022-09-16 10:38:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11903 states, 11817 states have (on average 2.1397139713971396) internal successors, (25285), 11902 states have internal predecessors, (25285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:44,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11903 states to 11903 states and 25285 transitions. [2022-09-16 10:38:44,519 INFO L78 Accepts]: Start accepts. Automaton has 11903 states and 25285 transitions. Word has length 71 [2022-09-16 10:38:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:44,520 INFO L495 AbstractCegarLoop]: Abstraction has 11903 states and 25285 transitions. [2022-09-16 10:38:44,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:44,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11903 states and 25285 transitions. [2022-09-16 10:38:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:44,545 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:44,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:44,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:38:44,545 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:44,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1343584764, now seen corresponding path program 6 times [2022-09-16 10:38:44,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:44,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640198064] [2022-09-16 10:38:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:44,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:44,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640198064] [2022-09-16 10:38:44,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640198064] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:44,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:44,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:44,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249396690] [2022-09-16 10:38:44,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:44,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:44,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:44,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:44,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:44,848 INFO L87 Difference]: Start difference. First operand 11903 states and 25285 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:46,298 INFO L93 Difference]: Finished difference Result 20572 states and 43591 transitions. [2022-09-16 10:38:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:38:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:46,337 INFO L225 Difference]: With dead ends: 20572 [2022-09-16 10:38:46,337 INFO L226 Difference]: Without dead ends: 20572 [2022-09-16 10:38:46,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=476, Invalid=1084, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:38:46,338 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1838 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:46,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 3462 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:46,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20572 states. [2022-09-16 10:38:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20572 to 12487. [2022-09-16 10:38:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12487 states, 12401 states have (on average 2.1350697524393194) internal successors, (26477), 12486 states have internal predecessors, (26477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12487 states to 12487 states and 26477 transitions. [2022-09-16 10:38:46,551 INFO L78 Accepts]: Start accepts. Automaton has 12487 states and 26477 transitions. Word has length 71 [2022-09-16 10:38:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:46,551 INFO L495 AbstractCegarLoop]: Abstraction has 12487 states and 26477 transitions. [2022-09-16 10:38:46,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 12487 states and 26477 transitions. [2022-09-16 10:38:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:46,553 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:46,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:46,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 10:38:46,554 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:46,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2073745924, now seen corresponding path program 7 times [2022-09-16 10:38:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:46,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014163289] [2022-09-16 10:38:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:46,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:46,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014163289] [2022-09-16 10:38:46,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014163289] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:46,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:46,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:46,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769138880] [2022-09-16 10:38:46,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:46,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:46,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:46,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:46,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:46,842 INFO L87 Difference]: Start difference. First operand 12487 states and 26477 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:48,319 INFO L93 Difference]: Finished difference Result 22513 states and 47601 transitions. [2022-09-16 10:38:48,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:38:48,320 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:48,362 INFO L225 Difference]: With dead ends: 22513 [2022-09-16 10:38:48,362 INFO L226 Difference]: Without dead ends: 22513 [2022-09-16 10:38:48,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=468, Invalid=1092, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:38:48,363 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 1706 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:48,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 3624 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:48,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22513 states. [2022-09-16 10:38:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22513 to 12882. [2022-09-16 10:38:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12882 states, 12796 states have (on average 2.1351984995311035) internal successors, (27322), 12881 states have internal predecessors, (27322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12882 states to 12882 states and 27322 transitions. [2022-09-16 10:38:48,597 INFO L78 Accepts]: Start accepts. Automaton has 12882 states and 27322 transitions. Word has length 71 [2022-09-16 10:38:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:48,597 INFO L495 AbstractCegarLoop]: Abstraction has 12882 states and 27322 transitions. [2022-09-16 10:38:48,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 12882 states and 27322 transitions. [2022-09-16 10:38:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:48,600 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:48,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:48,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 10:38:48,600 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:48,600 INFO L85 PathProgramCache]: Analyzing trace with hash 121941854, now seen corresponding path program 8 times [2022-09-16 10:38:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:48,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390191189] [2022-09-16 10:38:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:48,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:48,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390191189] [2022-09-16 10:38:48,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390191189] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:48,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:48,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042277134] [2022-09-16 10:38:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:48,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:48,869 INFO L87 Difference]: Start difference. First operand 12882 states and 27322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:50,223 INFO L93 Difference]: Finished difference Result 18756 states and 39881 transitions. [2022-09-16 10:38:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:38:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:50,250 INFO L225 Difference]: With dead ends: 18756 [2022-09-16 10:38:50,250 INFO L226 Difference]: Without dead ends: 18756 [2022-09-16 10:38:50,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:38:50,251 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1582 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:50,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 2972 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18756 states. [2022-09-16 10:38:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18756 to 12906. [2022-09-16 10:38:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12906 states, 12820 states have (on average 2.1349453978159127) internal successors, (27370), 12905 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12906 states to 12906 states and 27370 transitions. [2022-09-16 10:38:50,446 INFO L78 Accepts]: Start accepts. Automaton has 12906 states and 27370 transitions. Word has length 71 [2022-09-16 10:38:50,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:50,446 INFO L495 AbstractCegarLoop]: Abstraction has 12906 states and 27370 transitions. [2022-09-16 10:38:50,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 12906 states and 27370 transitions. [2022-09-16 10:38:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:50,449 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:50,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:50,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:38:50,449 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:50,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:50,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1074274198, now seen corresponding path program 9 times [2022-09-16 10:38:50,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:50,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281436247] [2022-09-16 10:38:50,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:50,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:50,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281436247] [2022-09-16 10:38:50,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281436247] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:50,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:50,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698064563] [2022-09-16 10:38:50,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:50,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:50,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:50,725 INFO L87 Difference]: Start difference. First operand 12906 states and 27370 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:52,064 INFO L93 Difference]: Finished difference Result 22503 states and 47896 transitions. [2022-09-16 10:38:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:38:52,064 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:52,096 INFO L225 Difference]: With dead ends: 22503 [2022-09-16 10:38:52,097 INFO L226 Difference]: Without dead ends: 22503 [2022-09-16 10:38:52,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=497, Invalid=1143, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:38:52,097 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 1595 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:52,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 3732 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:52,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22503 states. [2022-09-16 10:38:52,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22503 to 12900. [2022-09-16 10:38:52,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12900 states, 12814 states have (on average 2.1350085843608553) internal successors, (27358), 12899 states have internal predecessors, (27358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12900 states to 12900 states and 27358 transitions. [2022-09-16 10:38:52,349 INFO L78 Accepts]: Start accepts. Automaton has 12900 states and 27358 transitions. Word has length 71 [2022-09-16 10:38:52,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:52,349 INFO L495 AbstractCegarLoop]: Abstraction has 12900 states and 27358 transitions. [2022-09-16 10:38:52,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 12900 states and 27358 transitions. [2022-09-16 10:38:52,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:52,352 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:52,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:52,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-16 10:38:52,352 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:52,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:52,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1049463058, now seen corresponding path program 10 times [2022-09-16 10:38:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:52,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502609011] [2022-09-16 10:38:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:52,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502609011] [2022-09-16 10:38:52,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502609011] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:52,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:52,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578514773] [2022-09-16 10:38:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:52,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:52,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:52,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:52,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:52,647 INFO L87 Difference]: Start difference. First operand 12900 states and 27358 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:54,161 INFO L93 Difference]: Finished difference Result 23398 states and 49683 transitions. [2022-09-16 10:38:54,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:38:54,162 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:54,200 INFO L225 Difference]: With dead ends: 23398 [2022-09-16 10:38:54,200 INFO L226 Difference]: Without dead ends: 23398 [2022-09-16 10:38:54,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=476, Invalid=1084, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:38:54,201 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1718 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:54,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 3301 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23398 states. [2022-09-16 10:38:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23398 to 12882. [2022-09-16 10:38:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12882 states, 12796 states have (on average 2.1351984995311035) internal successors, (27322), 12881 states have internal predecessors, (27322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12882 states to 12882 states and 27322 transitions. [2022-09-16 10:38:54,531 INFO L78 Accepts]: Start accepts. Automaton has 12882 states and 27322 transitions. Word has length 71 [2022-09-16 10:38:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:54,532 INFO L495 AbstractCegarLoop]: Abstraction has 12882 states and 27322 transitions. [2022-09-16 10:38:54,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 12882 states and 27322 transitions. [2022-09-16 10:38:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:54,534 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:54,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:54,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 10:38:54,535 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:54,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:54,535 INFO L85 PathProgramCache]: Analyzing trace with hash 91909856, now seen corresponding path program 11 times [2022-09-16 10:38:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:54,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194182829] [2022-09-16 10:38:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:54,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:54,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194182829] [2022-09-16 10:38:54,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194182829] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:54,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:54,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:54,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102693708] [2022-09-16 10:38:54,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:54,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:54,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:54,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:54,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:54,858 INFO L87 Difference]: Start difference. First operand 12882 states and 27322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:56,407 INFO L93 Difference]: Finished difference Result 23208 states and 49055 transitions. [2022-09-16 10:38:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:38:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:56,452 INFO L225 Difference]: With dead ends: 23208 [2022-09-16 10:38:56,452 INFO L226 Difference]: Without dead ends: 23208 [2022-09-16 10:38:56,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=468, Invalid=1092, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:38:56,453 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1761 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:56,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 3904 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23208 states. [2022-09-16 10:38:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23208 to 12894. [2022-09-16 10:38:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12894 states, 12808 states have (on average 2.1350718301061837) internal successors, (27346), 12893 states have internal predecessors, (27346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12894 states to 12894 states and 27346 transitions. [2022-09-16 10:38:56,682 INFO L78 Accepts]: Start accepts. Automaton has 12894 states and 27346 transitions. Word has length 71 [2022-09-16 10:38:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:56,682 INFO L495 AbstractCegarLoop]: Abstraction has 12894 states and 27346 transitions. [2022-09-16 10:38:56,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 12894 states and 27346 transitions. [2022-09-16 10:38:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:56,685 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:56,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:56,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 10:38:56,685 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:56,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1859894214, now seen corresponding path program 12 times [2022-09-16 10:38:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:56,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591027040] [2022-09-16 10:38:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:56,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:57,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:57,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591027040] [2022-09-16 10:38:57,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591027040] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:57,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:57,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51459235] [2022-09-16 10:38:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:57,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:57,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:57,029 INFO L87 Difference]: Start difference. First operand 12894 states and 27346 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:58,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:58,112 INFO L93 Difference]: Finished difference Result 18867 states and 40103 transitions. [2022-09-16 10:38:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:38:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:38:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:58,141 INFO L225 Difference]: With dead ends: 18867 [2022-09-16 10:38:58,141 INFO L226 Difference]: Without dead ends: 18867 [2022-09-16 10:38:58,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:38:58,143 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1504 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:58,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 2603 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18867 states. [2022-09-16 10:38:58,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18867 to 12918. [2022-09-16 10:38:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12918 states, 12832 states have (on average 2.1348192019950125) internal successors, (27394), 12917 states have internal predecessors, (27394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12918 states to 12918 states and 27394 transitions. [2022-09-16 10:38:58,352 INFO L78 Accepts]: Start accepts. Automaton has 12918 states and 27394 transitions. Word has length 71 [2022-09-16 10:38:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:58,352 INFO L495 AbstractCegarLoop]: Abstraction has 12918 states and 27394 transitions. [2022-09-16 10:38:58,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand 12918 states and 27394 transitions. [2022-09-16 10:38:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:38:58,355 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:58,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:58,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 10:38:58,355 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:58,355 INFO L85 PathProgramCache]: Analyzing trace with hash -907561870, now seen corresponding path program 13 times [2022-09-16 10:38:58,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:58,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381017097] [2022-09-16 10:38:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:58,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:58,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381017097] [2022-09-16 10:38:58,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381017097] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:58,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:58,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:38:58,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401507100] [2022-09-16 10:38:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:58,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:38:58,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:38:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:38:58,654 INFO L87 Difference]: Start difference. First operand 12918 states and 27394 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:00,270 INFO L93 Difference]: Finished difference Result 22614 states and 48118 transitions. [2022-09-16 10:39:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:00,271 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:00,309 INFO L225 Difference]: With dead ends: 22614 [2022-09-16 10:39:00,309 INFO L226 Difference]: Without dead ends: 22614 [2022-09-16 10:39:00,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=497, Invalid=1143, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:00,310 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1631 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:00,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 3249 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:00,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2022-09-16 10:39:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 12912. [2022-09-16 10:39:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12912 states, 12826 states have (on average 2.1348822703882737) internal successors, (27382), 12911 states have internal predecessors, (27382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12912 states to 12912 states and 27382 transitions. [2022-09-16 10:39:00,535 INFO L78 Accepts]: Start accepts. Automaton has 12912 states and 27382 transitions. Word has length 71 [2022-09-16 10:39:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:00,535 INFO L495 AbstractCegarLoop]: Abstraction has 12912 states and 27382 transitions. [2022-09-16 10:39:00,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 12912 states and 27382 transitions. [2022-09-16 10:39:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:00,537 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:00,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:00,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-09-16 10:39:00,538 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:00,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:00,538 INFO L85 PathProgramCache]: Analyzing trace with hash -932373010, now seen corresponding path program 14 times [2022-09-16 10:39:00,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:00,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119490688] [2022-09-16 10:39:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:00,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:00,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119490688] [2022-09-16 10:39:00,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119490688] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:00,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:00,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:00,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882958656] [2022-09-16 10:39:00,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:00,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:00,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:00,803 INFO L87 Difference]: Start difference. First operand 12912 states and 27382 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:02,185 INFO L93 Difference]: Finished difference Result 23680 states and 50256 transitions. [2022-09-16 10:39:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:02,314 INFO L225 Difference]: With dead ends: 23680 [2022-09-16 10:39:02,314 INFO L226 Difference]: Without dead ends: 23680 [2022-09-16 10:39:02,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=476, Invalid=1084, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:02,316 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1622 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:02,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 3666 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23680 states. [2022-09-16 10:39:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23680 to 12891. [2022-09-16 10:39:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12891 states, 12805 states have (on average 2.135103475204998) internal successors, (27340), 12890 states have internal predecessors, (27340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12891 states to 12891 states and 27340 transitions. [2022-09-16 10:39:02,514 INFO L78 Accepts]: Start accepts. Automaton has 12891 states and 27340 transitions. Word has length 71 [2022-09-16 10:39:02,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:02,514 INFO L495 AbstractCegarLoop]: Abstraction has 12891 states and 27340 transitions. [2022-09-16 10:39:02,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 12891 states and 27340 transitions. [2022-09-16 10:39:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:02,517 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:02,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:02,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-09-16 10:39:02,517 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -143702094, now seen corresponding path program 15 times [2022-09-16 10:39:02,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:02,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867167913] [2022-09-16 10:39:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:02,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:02,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867167913] [2022-09-16 10:39:02,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867167913] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:02,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51861846] [2022-09-16 10:39:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:02,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:02,815 INFO L87 Difference]: Start difference. First operand 12891 states and 27340 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:04,615 INFO L93 Difference]: Finished difference Result 22279 states and 47088 transitions. [2022-09-16 10:39:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:04,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:04,651 INFO L225 Difference]: With dead ends: 22279 [2022-09-16 10:39:04,652 INFO L226 Difference]: Without dead ends: 22279 [2022-09-16 10:39:04,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:04,653 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 1737 mSDsluCounter, 3835 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:04,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4380 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:39:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22279 states. [2022-09-16 10:39:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22279 to 13183. [2022-09-16 10:39:04,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13097 states have (on average 2.1330075589829733) internal successors, (27936), 13182 states have internal predecessors, (27936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 27936 transitions. [2022-09-16 10:39:04,952 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 27936 transitions. Word has length 71 [2022-09-16 10:39:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:04,953 INFO L495 AbstractCegarLoop]: Abstraction has 13183 states and 27936 transitions. [2022-09-16 10:39:04,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 27936 transitions. [2022-09-16 10:39:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:04,955 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:04,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-09-16 10:39:04,956 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -694979462, now seen corresponding path program 16 times [2022-09-16 10:39:04,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201072303] [2022-09-16 10:39:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:04,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:05,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:05,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201072303] [2022-09-16 10:39:05,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201072303] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:05,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:05,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:05,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457010934] [2022-09-16 10:39:05,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:05,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:05,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:05,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:05,241 INFO L87 Difference]: Start difference. First operand 13183 states and 27936 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:06,655 INFO L93 Difference]: Finished difference Result 19312 states and 40518 transitions. [2022-09-16 10:39:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:06,686 INFO L225 Difference]: With dead ends: 19312 [2022-09-16 10:39:06,686 INFO L226 Difference]: Without dead ends: 19312 [2022-09-16 10:39:06,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=454, Invalid=1106, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:06,687 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1859 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:06,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4023 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-09-16 10:39:06,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 13339. [2022-09-16 10:39:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13339 states, 13253 states have (on average 2.1334792122538295) internal successors, (28275), 13338 states have internal predecessors, (28275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13339 states to 13339 states and 28275 transitions. [2022-09-16 10:39:06,892 INFO L78 Accepts]: Start accepts. Automaton has 13339 states and 28275 transitions. Word has length 71 [2022-09-16 10:39:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:06,892 INFO L495 AbstractCegarLoop]: Abstraction has 13339 states and 28275 transitions. [2022-09-16 10:39:06,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13339 states and 28275 transitions. [2022-09-16 10:39:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:06,895 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:06,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-09-16 10:39:06,895 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -25678666, now seen corresponding path program 17 times [2022-09-16 10:39:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:06,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360307382] [2022-09-16 10:39:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:06,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:07,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:07,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360307382] [2022-09-16 10:39:07,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360307382] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:07,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:07,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914187121] [2022-09-16 10:39:07,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:07,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:07,187 INFO L87 Difference]: Start difference. First operand 13339 states and 28275 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:08,560 INFO L93 Difference]: Finished difference Result 23561 states and 49792 transitions. [2022-09-16 10:39:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:08,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:08,601 INFO L225 Difference]: With dead ends: 23561 [2022-09-16 10:39:08,601 INFO L226 Difference]: Without dead ends: 23561 [2022-09-16 10:39:08,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=461, Invalid=1099, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:08,602 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1865 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:08,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 3528 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:08,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23561 states. [2022-09-16 10:39:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23561 to 13348. [2022-09-16 10:39:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13262 states have (on average 2.1333886291660384) internal successors, (28293), 13347 states have internal predecessors, (28293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 28293 transitions. [2022-09-16 10:39:08,854 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 28293 transitions. Word has length 71 [2022-09-16 10:39:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:08,854 INFO L495 AbstractCegarLoop]: Abstraction has 13348 states and 28293 transitions. [2022-09-16 10:39:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 28293 transitions. [2022-09-16 10:39:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:08,857 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:08,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:08,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-09-16 10:39:08,857 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:08,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash 491469212, now seen corresponding path program 18 times [2022-09-16 10:39:08,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:08,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62649676] [2022-09-16 10:39:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:08,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:09,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:09,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62649676] [2022-09-16 10:39:09,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62649676] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:09,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:09,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:09,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042629027] [2022-09-16 10:39:09,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:09,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:09,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:09,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:09,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:09,137 INFO L87 Difference]: Start difference. First operand 13348 states and 28293 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:10,291 INFO L93 Difference]: Finished difference Result 23269 states and 49204 transitions. [2022-09-16 10:39:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:10,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:10,330 INFO L225 Difference]: With dead ends: 23269 [2022-09-16 10:39:10,330 INFO L226 Difference]: Without dead ends: 23269 [2022-09-16 10:39:10,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=469, Invalid=1091, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:10,331 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1889 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:10,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 3274 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:39:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23269 states. [2022-09-16 10:39:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23269 to 13351. [2022-09-16 10:39:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13351 states, 13265 states have (on average 2.133358462118357) internal successors, (28299), 13350 states have internal predecessors, (28299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13351 states to 13351 states and 28299 transitions. [2022-09-16 10:39:10,640 INFO L78 Accepts]: Start accepts. Automaton has 13351 states and 28299 transitions. Word has length 71 [2022-09-16 10:39:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 13351 states and 28299 transitions. [2022-09-16 10:39:10,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13351 states and 28299 transitions. [2022-09-16 10:39:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:10,643 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:10,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:10,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-09-16 10:39:10,644 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1460334858, now seen corresponding path program 19 times [2022-09-16 10:39:10,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:10,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195226241] [2022-09-16 10:39:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:10,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:10,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:10,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195226241] [2022-09-16 10:39:10,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195226241] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:10,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:10,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672486968] [2022-09-16 10:39:10,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:10,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:10,984 INFO L87 Difference]: Start difference. First operand 13351 states and 28299 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:12,276 INFO L93 Difference]: Finished difference Result 18928 states and 40252 transitions. [2022-09-16 10:39:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:39:12,277 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:12,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:12,305 INFO L225 Difference]: With dead ends: 18928 [2022-09-16 10:39:12,306 INFO L226 Difference]: Without dead ends: 18928 [2022-09-16 10:39:12,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=1010, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:39:12,307 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 1517 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:12,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 3185 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:12,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18928 states. [2022-09-16 10:39:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18928 to 13375. [2022-09-16 10:39:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13289 states have (on average 2.133117616073444) internal successors, (28347), 13374 states have internal predecessors, (28347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 28347 transitions. [2022-09-16 10:39:12,514 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 28347 transitions. Word has length 71 [2022-09-16 10:39:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:12,514 INFO L495 AbstractCegarLoop]: Abstraction has 13375 states and 28347 transitions. [2022-09-16 10:39:12,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 28347 transitions. [2022-09-16 10:39:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:12,517 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:12,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:12,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-09-16 10:39:12,517 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash -508002514, now seen corresponding path program 20 times [2022-09-16 10:39:12,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:12,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801597608] [2022-09-16 10:39:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:12,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:12,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:12,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801597608] [2022-09-16 10:39:12,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801597608] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:12,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:12,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:12,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453879965] [2022-09-16 10:39:12,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:12,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:12,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:12,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:12,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:12,825 INFO L87 Difference]: Start difference. First operand 13375 states and 28347 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:14,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:14,758 INFO L93 Difference]: Finished difference Result 22675 states and 48267 transitions. [2022-09-16 10:39:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:14,759 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:14,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:14,792 INFO L225 Difference]: With dead ends: 22675 [2022-09-16 10:39:14,792 INFO L226 Difference]: Without dead ends: 22675 [2022-09-16 10:39:14,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=498, Invalid=1142, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:14,793 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 1610 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:14,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 3927 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:14,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22675 states. [2022-09-16 10:39:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22675 to 13369. [2022-09-16 10:39:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13283 states have (on average 2.1331777459911163) internal successors, (28335), 13368 states have internal predecessors, (28335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 28335 transitions. [2022-09-16 10:39:15,028 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 28335 transitions. Word has length 71 [2022-09-16 10:39:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:15,029 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 28335 transitions. [2022-09-16 10:39:15,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:15,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 28335 transitions. [2022-09-16 10:39:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:15,032 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:15,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:15,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-09-16 10:39:15,032 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:15,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -532813654, now seen corresponding path program 21 times [2022-09-16 10:39:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:15,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767243658] [2022-09-16 10:39:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:15,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:15,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767243658] [2022-09-16 10:39:15,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767243658] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:15,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:15,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:15,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850867378] [2022-09-16 10:39:15,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:15,324 INFO L87 Difference]: Start difference. First operand 13369 states and 28335 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:16,613 INFO L93 Difference]: Finished difference Result 23570 states and 50054 transitions. [2022-09-16 10:39:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:16,657 INFO L225 Difference]: With dead ends: 23570 [2022-09-16 10:39:16,657 INFO L226 Difference]: Without dead ends: 23570 [2022-09-16 10:39:16,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=477, Invalid=1083, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:16,658 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 1586 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:16,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 2906 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:39:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23570 states. [2022-09-16 10:39:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23570 to 13339. [2022-09-16 10:39:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13339 states, 13253 states have (on average 2.1334792122538295) internal successors, (28275), 13338 states have internal predecessors, (28275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13339 states to 13339 states and 28275 transitions. [2022-09-16 10:39:16,905 INFO L78 Accepts]: Start accepts. Automaton has 13339 states and 28275 transitions. Word has length 71 [2022-09-16 10:39:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:16,905 INFO L495 AbstractCegarLoop]: Abstraction has 13339 states and 28275 transitions. [2022-09-16 10:39:16,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 13339 states and 28275 transitions. [2022-09-16 10:39:16,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:16,907 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:16,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:16,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-09-16 10:39:16,908 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:16,908 INFO L85 PathProgramCache]: Analyzing trace with hash 197906520, now seen corresponding path program 22 times [2022-09-16 10:39:16,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:16,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781357082] [2022-09-16 10:39:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:16,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:17,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:17,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:17,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781357082] [2022-09-16 10:39:17,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781357082] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:17,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:17,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:17,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843877426] [2022-09-16 10:39:17,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:17,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:17,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:17,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:17,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:17,233 INFO L87 Difference]: Start difference. First operand 13339 states and 28275 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:18,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:18,736 INFO L93 Difference]: Finished difference Result 18681 states and 39521 transitions. [2022-09-16 10:39:18,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:39:18,737 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:18,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:18,765 INFO L225 Difference]: With dead ends: 18681 [2022-09-16 10:39:18,765 INFO L226 Difference]: Without dead ends: 18681 [2022-09-16 10:39:18,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=430, Invalid=1052, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:39:18,766 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1955 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:18,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 2567 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18681 states. [2022-09-16 10:39:18,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18681 to 13414. [2022-09-16 10:39:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13328 states have (on average 2.1327280912364945) internal successors, (28425), 13413 states have internal predecessors, (28425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 28425 transitions. [2022-09-16 10:39:18,976 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 28425 transitions. Word has length 71 [2022-09-16 10:39:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:18,976 INFO L495 AbstractCegarLoop]: Abstraction has 13414 states and 28425 transitions. [2022-09-16 10:39:18,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 28425 transitions. [2022-09-16 10:39:18,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:18,979 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:18,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:18,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-09-16 10:39:18,979 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:18,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1946584844, now seen corresponding path program 23 times [2022-09-16 10:39:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537825311] [2022-09-16 10:39:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:18,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:19,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:19,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:19,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537825311] [2022-09-16 10:39:19,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537825311] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:19,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:19,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:19,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450168957] [2022-09-16 10:39:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:19,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:19,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:19,252 INFO L87 Difference]: Start difference. First operand 13414 states and 28425 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:21,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:21,068 INFO L93 Difference]: Finished difference Result 19825 states and 42086 transitions. [2022-09-16 10:39:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:39:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:21,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:21,102 INFO L225 Difference]: With dead ends: 19825 [2022-09-16 10:39:21,102 INFO L226 Difference]: Without dead ends: 19825 [2022-09-16 10:39:21,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=531, Invalid=1191, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:39:21,103 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1640 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:21,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3339 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19825 states. [2022-09-16 10:39:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19825 to 13420. [2022-09-16 10:39:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13420 states, 13334 states have (on average 2.132668366581671) internal successors, (28437), 13419 states have internal predecessors, (28437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13420 states to 13420 states and 28437 transitions. [2022-09-16 10:39:21,418 INFO L78 Accepts]: Start accepts. Automaton has 13420 states and 28437 transitions. Word has length 71 [2022-09-16 10:39:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:21,419 INFO L495 AbstractCegarLoop]: Abstraction has 13420 states and 28437 transitions. [2022-09-16 10:39:21,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13420 states and 28437 transitions. [2022-09-16 10:39:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:21,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:21,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:21,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-09-16 10:39:21,422 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:21,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:21,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1824014200, now seen corresponding path program 24 times [2022-09-16 10:39:21,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:21,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690890693] [2022-09-16 10:39:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:21,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:21,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690890693] [2022-09-16 10:39:21,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690890693] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:21,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:21,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517941502] [2022-09-16 10:39:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:21,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:21,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:21,676 INFO L87 Difference]: Start difference. First operand 13420 states and 28437 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:23,278 INFO L93 Difference]: Finished difference Result 22434 states and 47548 transitions. [2022-09-16 10:39:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:39:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:23,321 INFO L225 Difference]: With dead ends: 22434 [2022-09-16 10:39:23,322 INFO L226 Difference]: Without dead ends: 22434 [2022-09-16 10:39:23,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:39:23,324 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2005 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:23,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 3218 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:23,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2022-09-16 10:39:23,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 13402. [2022-09-16 10:39:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13402 states, 13316 states have (on average 2.1328477020126164) internal successors, (28401), 13401 states have internal predecessors, (28401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13402 states to 13402 states and 28401 transitions. [2022-09-16 10:39:23,564 INFO L78 Accepts]: Start accepts. Automaton has 13402 states and 28401 transitions. Word has length 71 [2022-09-16 10:39:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:23,564 INFO L495 AbstractCegarLoop]: Abstraction has 13402 states and 28401 transitions. [2022-09-16 10:39:23,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 13402 states and 28401 transitions. [2022-09-16 10:39:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:23,568 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:23,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:23,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-09-16 10:39:23,569 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1910722096, now seen corresponding path program 25 times [2022-09-16 10:39:23,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:23,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262357134] [2022-09-16 10:39:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:23,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262357134] [2022-09-16 10:39:23,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262357134] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:23,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:23,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:23,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486583947] [2022-09-16 10:39:23,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:23,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:23,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:23,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:23,899 INFO L87 Difference]: Start difference. First operand 13402 states and 28401 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:24,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:24,996 INFO L93 Difference]: Finished difference Result 19116 states and 40412 transitions. [2022-09-16 10:39:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:39:24,997 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:25,027 INFO L225 Difference]: With dead ends: 19116 [2022-09-16 10:39:25,027 INFO L226 Difference]: Without dead ends: 19116 [2022-09-16 10:39:25,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:39:25,028 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1688 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:25,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 2738 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:39:25,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19116 states. [2022-09-16 10:39:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19116 to 13426. [2022-09-16 10:39:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13426 states, 13340 states have (on average 2.132608695652174) internal successors, (28449), 13425 states have internal predecessors, (28449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:25,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13426 states to 13426 states and 28449 transitions. [2022-09-16 10:39:25,245 INFO L78 Accepts]: Start accepts. Automaton has 13426 states and 28449 transitions. Word has length 71 [2022-09-16 10:39:25,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:25,245 INFO L495 AbstractCegarLoop]: Abstraction has 13426 states and 28449 transitions. [2022-09-16 10:39:25,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:25,245 INFO L276 IsEmpty]: Start isEmpty. Operand 13426 states and 28449 transitions. [2022-09-16 10:39:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:25,248 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:25,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:25,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-09-16 10:39:25,248 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:25,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1386353844, now seen corresponding path program 26 times [2022-09-16 10:39:25,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:25,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390671567] [2022-09-16 10:39:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:25,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:25,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:25,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390671567] [2022-09-16 10:39:25,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390671567] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:25,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:25,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642176983] [2022-09-16 10:39:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:25,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:25,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:25,528 INFO L87 Difference]: Start difference. First operand 13426 states and 28449 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:26,954 INFO L93 Difference]: Finished difference Result 22863 states and 48427 transitions. [2022-09-16 10:39:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:26,954 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:26,992 INFO L225 Difference]: With dead ends: 22863 [2022-09-16 10:39:26,992 INFO L226 Difference]: Without dead ends: 22863 [2022-09-16 10:39:26,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:26,993 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 1810 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:26,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3638 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22863 states. [2022-09-16 10:39:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22863 to 13420. [2022-09-16 10:39:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13420 states, 13334 states have (on average 2.132668366581671) internal successors, (28437), 13419 states have internal predecessors, (28437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13420 states to 13420 states and 28437 transitions. [2022-09-16 10:39:27,277 INFO L78 Accepts]: Start accepts. Automaton has 13420 states and 28437 transitions. Word has length 71 [2022-09-16 10:39:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:27,277 INFO L495 AbstractCegarLoop]: Abstraction has 13420 states and 28437 transitions. [2022-09-16 10:39:27,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13420 states and 28437 transitions. [2022-09-16 10:39:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:27,280 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:27,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:27,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-09-16 10:39:27,280 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:27,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2000624840, now seen corresponding path program 27 times [2022-09-16 10:39:27,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:27,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136853867] [2022-09-16 10:39:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:27,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:27,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136853867] [2022-09-16 10:39:27,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136853867] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:27,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:27,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:27,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362761157] [2022-09-16 10:39:27,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:27,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:27,508 INFO L87 Difference]: Start difference. First operand 13420 states and 28437 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:29,260 INFO L93 Difference]: Finished difference Result 24323 states and 51588 transitions. [2022-09-16 10:39:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:29,303 INFO L225 Difference]: With dead ends: 24323 [2022-09-16 10:39:29,303 INFO L226 Difference]: Without dead ends: 24323 [2022-09-16 10:39:29,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:29,304 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1685 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:29,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3380 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24323 states. [2022-09-16 10:39:29,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24323 to 13366. [2022-09-16 10:39:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13366 states, 13280 states have (on average 2.133207831325301) internal successors, (28329), 13365 states have internal predecessors, (28329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13366 states to 13366 states and 28329 transitions. [2022-09-16 10:39:29,560 INFO L78 Accepts]: Start accepts. Automaton has 13366 states and 28329 transitions. Word has length 71 [2022-09-16 10:39:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:29,560 INFO L495 AbstractCegarLoop]: Abstraction has 13366 states and 28329 transitions. [2022-09-16 10:39:29,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:29,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13366 states and 28329 transitions. [2022-09-16 10:39:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:29,563 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:29,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:29,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-09-16 10:39:29,564 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:29,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1122988232, now seen corresponding path program 28 times [2022-09-16 10:39:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:29,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158197312] [2022-09-16 10:39:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:29,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:29,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158197312] [2022-09-16 10:39:29,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158197312] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:29,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:29,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920746056] [2022-09-16 10:39:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:29,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:29,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:29,913 INFO L87 Difference]: Start difference. First operand 13366 states and 28329 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:31,259 INFO L93 Difference]: Finished difference Result 26264 states and 55598 transitions. [2022-09-16 10:39:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:31,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:31,308 INFO L225 Difference]: With dead ends: 26264 [2022-09-16 10:39:31,308 INFO L226 Difference]: Without dead ends: 26264 [2022-09-16 10:39:31,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=467, Invalid=1093, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:31,309 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1655 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:31,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 3610 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:31,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26264 states. [2022-09-16 10:39:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26264 to 13369. [2022-09-16 10:39:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13283 states have (on average 2.1331777459911163) internal successors, (28335), 13368 states have internal predecessors, (28335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 28335 transitions. [2022-09-16 10:39:31,573 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 28335 transitions. Word has length 71 [2022-09-16 10:39:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:31,573 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 28335 transitions. [2022-09-16 10:39:31,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 28335 transitions. [2022-09-16 10:39:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:31,576 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:31,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-09-16 10:39:31,576 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash -828815838, now seen corresponding path program 29 times [2022-09-16 10:39:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:31,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310244545] [2022-09-16 10:39:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:31,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:31,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310244545] [2022-09-16 10:39:31,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310244545] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:31,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:31,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:31,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988539523] [2022-09-16 10:39:31,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:31,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:31,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:31,848 INFO L87 Difference]: Start difference. First operand 13369 states and 28335 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:33,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:33,352 INFO L93 Difference]: Finished difference Result 20194 states and 42833 transitions. [2022-09-16 10:39:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:39:33,353 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:33,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:33,385 INFO L225 Difference]: With dead ends: 20194 [2022-09-16 10:39:33,386 INFO L226 Difference]: Without dead ends: 20194 [2022-09-16 10:39:33,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:39:33,387 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1659 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:33,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 3298 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:33,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20194 states. [2022-09-16 10:39:33,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20194 to 13393. [2022-09-16 10:39:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13393 states, 13307 states have (on average 2.1329375516645372) internal successors, (28383), 13392 states have internal predecessors, (28383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:33,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13393 states to 13393 states and 28383 transitions. [2022-09-16 10:39:33,688 INFO L78 Accepts]: Start accepts. Automaton has 13393 states and 28383 transitions. Word has length 71 [2022-09-16 10:39:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:33,688 INFO L495 AbstractCegarLoop]: Abstraction has 13393 states and 28383 transitions. [2022-09-16 10:39:33,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:33,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13393 states and 28383 transitions. [2022-09-16 10:39:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:33,691 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:33,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:33,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-09-16 10:39:33,691 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:33,691 INFO L85 PathProgramCache]: Analyzing trace with hash 123516506, now seen corresponding path program 30 times [2022-09-16 10:39:33,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:33,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357273848] [2022-09-16 10:39:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:33,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:33,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357273848] [2022-09-16 10:39:33,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357273848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:33,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:33,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680936062] [2022-09-16 10:39:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:33,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:33,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:33,963 INFO L87 Difference]: Start difference. First operand 13393 states and 28383 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:35,548 INFO L93 Difference]: Finished difference Result 23941 states and 50848 transitions. [2022-09-16 10:39:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:35,549 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:35,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:35,588 INFO L225 Difference]: With dead ends: 23941 [2022-09-16 10:39:35,589 INFO L226 Difference]: Without dead ends: 23941 [2022-09-16 10:39:35,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:35,589 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 1732 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:35,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 3784 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:35,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23941 states. [2022-09-16 10:39:35,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23941 to 13387. [2022-09-16 10:39:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13301 states have (on average 2.1329975189835353) internal successors, (28371), 13386 states have internal predecessors, (28371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 28371 transitions. [2022-09-16 10:39:35,852 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 28371 transitions. Word has length 71 [2022-09-16 10:39:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:35,852 INFO L495 AbstractCegarLoop]: Abstraction has 13387 states and 28371 transitions. [2022-09-16 10:39:35,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 28371 transitions. [2022-09-16 10:39:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:35,854 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:35,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:35,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-09-16 10:39:35,862 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:35,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:35,862 INFO L85 PathProgramCache]: Analyzing trace with hash 98705366, now seen corresponding path program 31 times [2022-09-16 10:39:35,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:35,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829573991] [2022-09-16 10:39:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:35,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:36,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829573991] [2022-09-16 10:39:36,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829573991] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:36,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:36,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:36,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625970595] [2022-09-16 10:39:36,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:36,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:36,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:36,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:36,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:36,138 INFO L87 Difference]: Start difference. First operand 13387 states and 28371 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:37,451 INFO L93 Difference]: Finished difference Result 24836 states and 52635 transitions. [2022-09-16 10:39:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:37,452 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:37,503 INFO L225 Difference]: With dead ends: 24836 [2022-09-16 10:39:37,504 INFO L226 Difference]: Without dead ends: 24836 [2022-09-16 10:39:37,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:37,504 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 1691 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:37,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 3211 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24836 states. [2022-09-16 10:39:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24836 to 13360. [2022-09-16 10:39:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13360 states, 13274 states have (on average 2.133268042790417) internal successors, (28317), 13359 states have internal predecessors, (28317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13360 states to 13360 states and 28317 transitions. [2022-09-16 10:39:37,790 INFO L78 Accepts]: Start accepts. Automaton has 13360 states and 28317 transitions. Word has length 71 [2022-09-16 10:39:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:37,790 INFO L495 AbstractCegarLoop]: Abstraction has 13360 states and 28317 transitions. [2022-09-16 10:39:37,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 13360 states and 28317 transitions. [2022-09-16 10:39:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:37,793 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:37,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:37,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-09-16 10:39:37,794 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -858847836, now seen corresponding path program 32 times [2022-09-16 10:39:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:37,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757867414] [2022-09-16 10:39:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:37,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:37,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757867414] [2022-09-16 10:39:37,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757867414] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:37,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:37,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:37,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711820473] [2022-09-16 10:39:37,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:37,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:37,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:37,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:37,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:37,996 INFO L87 Difference]: Start difference. First operand 13360 states and 28317 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:39,618 INFO L93 Difference]: Finished difference Result 24250 states and 51203 transitions. [2022-09-16 10:39:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:39,618 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:39,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:39,658 INFO L225 Difference]: With dead ends: 24250 [2022-09-16 10:39:39,659 INFO L226 Difference]: Without dead ends: 24250 [2022-09-16 10:39:39,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=467, Invalid=1093, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:39,659 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1719 mSDsluCounter, 3450 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:39,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 3957 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24250 states. [2022-09-16 10:39:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24250 to 13372. [2022-09-16 10:39:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13372 states, 13286 states have (on average 2.1331476742435647) internal successors, (28341), 13371 states have internal predecessors, (28341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13372 states to 13372 states and 28341 transitions. [2022-09-16 10:39:39,891 INFO L78 Accepts]: Start accepts. Automaton has 13372 states and 28341 transitions. Word has length 71 [2022-09-16 10:39:39,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:39,907 INFO L495 AbstractCegarLoop]: Abstraction has 13372 states and 28341 transitions. [2022-09-16 10:39:39,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 13372 states and 28341 transitions. [2022-09-16 10:39:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:39,910 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:39,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:39,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-09-16 10:39:39,910 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1484315390, now seen corresponding path program 33 times [2022-09-16 10:39:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:39,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443311436] [2022-09-16 10:39:39,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:39,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:40,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:40,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443311436] [2022-09-16 10:39:40,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443311436] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:40,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:40,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512147977] [2022-09-16 10:39:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:40,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:40,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:40,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:40,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:40,203 INFO L87 Difference]: Start difference. First operand 13372 states and 28341 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:41,673 INFO L93 Difference]: Finished difference Result 19909 states and 42251 transitions. [2022-09-16 10:39:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:39:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:41,706 INFO L225 Difference]: With dead ends: 19909 [2022-09-16 10:39:41,706 INFO L226 Difference]: Without dead ends: 19909 [2022-09-16 10:39:41,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:39:41,707 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1583 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:41,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 2797 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19909 states. [2022-09-16 10:39:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19909 to 13396. [2022-09-16 10:39:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13310 states have (on average 2.132907588279489) internal successors, (28389), 13395 states have internal predecessors, (28389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 28389 transitions. [2022-09-16 10:39:41,927 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 28389 transitions. Word has length 71 [2022-09-16 10:39:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:41,927 INFO L495 AbstractCegarLoop]: Abstraction has 13396 states and 28389 transitions. [2022-09-16 10:39:41,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 28389 transitions. [2022-09-16 10:39:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:41,930 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:41,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:41,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-09-16 10:39:41,930 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:41,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1858319562, now seen corresponding path program 34 times [2022-09-16 10:39:41,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:41,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585183830] [2022-09-16 10:39:41,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:42,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:42,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585183830] [2022-09-16 10:39:42,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585183830] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:42,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:42,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:42,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257427126] [2022-09-16 10:39:42,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:42,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:42,225 INFO L87 Difference]: Start difference. First operand 13396 states and 28389 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:43,462 INFO L93 Difference]: Finished difference Result 23656 states and 50266 transitions. [2022-09-16 10:39:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:43,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:43,501 INFO L225 Difference]: With dead ends: 23656 [2022-09-16 10:39:43,501 INFO L226 Difference]: Without dead ends: 23656 [2022-09-16 10:39:43,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:43,502 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1583 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:43,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 3311 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:39:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23656 states. [2022-09-16 10:39:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23656 to 13390. [2022-09-16 10:39:43,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13390 states, 13304 states have (on average 2.132967528562838) internal successors, (28377), 13389 states have internal predecessors, (28377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13390 states to 13390 states and 28377 transitions. [2022-09-16 10:39:43,735 INFO L78 Accepts]: Start accepts. Automaton has 13390 states and 28377 transitions. Word has length 71 [2022-09-16 10:39:43,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:43,735 INFO L495 AbstractCegarLoop]: Abstraction has 13390 states and 28377 transitions. [2022-09-16 10:39:43,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 13390 states and 28377 transitions. [2022-09-16 10:39:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:43,738 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:43,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:43,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-09-16 10:39:43,738 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:43,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1883130702, now seen corresponding path program 35 times [2022-09-16 10:39:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:43,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149492736] [2022-09-16 10:39:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:43,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:44,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:44,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149492736] [2022-09-16 10:39:44,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149492736] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:44,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:44,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247647086] [2022-09-16 10:39:44,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:44,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:44,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:44,065 INFO L87 Difference]: Start difference. First operand 13390 states and 28377 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:46,007 INFO L93 Difference]: Finished difference Result 24722 states and 52404 transitions. [2022-09-16 10:39:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:46,051 INFO L225 Difference]: With dead ends: 24722 [2022-09-16 10:39:46,051 INFO L226 Difference]: Without dead ends: 24722 [2022-09-16 10:39:46,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:46,052 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1874 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:46,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 3614 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:39:46,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24722 states. [2022-09-16 10:39:46,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24722 to 13369. [2022-09-16 10:39:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13283 states have (on average 2.1331777459911163) internal successors, (28335), 13368 states have internal predecessors, (28335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 28335 transitions. [2022-09-16 10:39:46,307 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 28335 transitions. Word has length 71 [2022-09-16 10:39:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:46,308 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 28335 transitions. [2022-09-16 10:39:46,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 28335 transitions. [2022-09-16 10:39:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:46,310 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:46,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:46,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-09-16 10:39:46,311 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1094459786, now seen corresponding path program 36 times [2022-09-16 10:39:46,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:46,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863860066] [2022-09-16 10:39:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:46,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:46,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:46,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863860066] [2022-09-16 10:39:46,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863860066] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:46,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:46,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736461969] [2022-09-16 10:39:46,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:46,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:46,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:46,584 INFO L87 Difference]: Start difference. First operand 13369 states and 28335 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:47,789 INFO L93 Difference]: Finished difference Result 26351 states and 55807 transitions. [2022-09-16 10:39:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:47,841 INFO L225 Difference]: With dead ends: 26351 [2022-09-16 10:39:47,841 INFO L226 Difference]: Without dead ends: 26351 [2022-09-16 10:39:47,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=459, Invalid=1101, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:47,842 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 1717 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:47,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 3728 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26351 states. [2022-09-16 10:39:48,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26351 to 13342. [2022-09-16 10:39:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13342 states, 13256 states have (on average 2.1334490042245022) internal successors, (28281), 13341 states have internal predecessors, (28281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13342 states to 13342 states and 28281 transitions. [2022-09-16 10:39:48,165 INFO L78 Accepts]: Start accepts. Automaton has 13342 states and 28281 transitions. Word has length 71 [2022-09-16 10:39:48,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:48,165 INFO L495 AbstractCegarLoop]: Abstraction has 13342 states and 28281 transitions. [2022-09-16 10:39:48,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13342 states and 28281 transitions. [2022-09-16 10:39:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:48,169 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:48,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:48,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-09-16 10:39:48,169 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:48,170 INFO L85 PathProgramCache]: Analyzing trace with hash 29036180, now seen corresponding path program 37 times [2022-09-16 10:39:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:48,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104558592] [2022-09-16 10:39:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:48,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:48,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:48,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104558592] [2022-09-16 10:39:48,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104558592] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:48,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:48,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:48,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169145214] [2022-09-16 10:39:48,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:48,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:48,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:48,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:48,415 INFO L87 Difference]: Start difference. First operand 13342 states and 28281 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:49,465 INFO L93 Difference]: Finished difference Result 18609 states and 39377 transitions. [2022-09-16 10:39:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:39:49,466 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:49,495 INFO L225 Difference]: With dead ends: 18609 [2022-09-16 10:39:49,495 INFO L226 Difference]: Without dead ends: 18609 [2022-09-16 10:39:49,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=1052, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:39:49,496 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1688 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:49,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 3511 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18609 states. [2022-09-16 10:39:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18609 to 13397. [2022-09-16 10:39:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13311 states have (on average 2.132897603485839) internal successors, (28391), 13396 states have internal predecessors, (28391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 28391 transitions. [2022-09-16 10:39:49,713 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 28391 transitions. Word has length 71 [2022-09-16 10:39:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:49,713 INFO L495 AbstractCegarLoop]: Abstraction has 13397 states and 28391 transitions. [2022-09-16 10:39:49,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:49,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 28391 transitions. [2022-09-16 10:39:49,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:49,716 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:49,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:49,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-09-16 10:39:49,716 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:49,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1777714504, now seen corresponding path program 38 times [2022-09-16 10:39:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073342611] [2022-09-16 10:39:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:49,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:49,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073342611] [2022-09-16 10:39:49,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073342611] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:49,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:49,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:49,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352683142] [2022-09-16 10:39:49,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:49,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:49,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:49,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:49,949 INFO L87 Difference]: Start difference. First operand 13397 states and 28391 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:51,204 INFO L93 Difference]: Finished difference Result 19753 states and 41942 transitions. [2022-09-16 10:39:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:39:51,205 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:51,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:51,238 INFO L225 Difference]: With dead ends: 19753 [2022-09-16 10:39:51,238 INFO L226 Difference]: Without dead ends: 19753 [2022-09-16 10:39:51,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=531, Invalid=1191, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:39:51,239 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1662 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:51,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 3248 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:51,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19753 states. [2022-09-16 10:39:51,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19753 to 13403. [2022-09-16 10:39:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13317 states have (on average 2.1328377262146128) internal successors, (28403), 13402 states have internal predecessors, (28403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 28403 transitions. [2022-09-16 10:39:51,469 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 28403 transitions. Word has length 71 [2022-09-16 10:39:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:51,469 INFO L495 AbstractCegarLoop]: Abstraction has 13403 states and 28403 transitions. [2022-09-16 10:39:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 28403 transitions. [2022-09-16 10:39:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:51,471 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:51,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:51,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-09-16 10:39:51,471 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1992884540, now seen corresponding path program 39 times [2022-09-16 10:39:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027571388] [2022-09-16 10:39:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:51,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:51,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:51,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027571388] [2022-09-16 10:39:51,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027571388] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:51,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:51,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:51,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29427721] [2022-09-16 10:39:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:51,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:51,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:51,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:51,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:51,764 INFO L87 Difference]: Start difference. First operand 13403 states and 28403 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:53,775 INFO L93 Difference]: Finished difference Result 22362 states and 47404 transitions. [2022-09-16 10:39:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:39:53,775 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:53,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:53,814 INFO L225 Difference]: With dead ends: 22362 [2022-09-16 10:39:53,814 INFO L226 Difference]: Without dead ends: 22362 [2022-09-16 10:39:53,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:39:53,815 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1744 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 3535 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:53,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 3535 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:53,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22362 states. [2022-09-16 10:39:54,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22362 to 13385. [2022-09-16 10:39:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13385 states, 13299 states have (on average 2.1330175201142945) internal successors, (28367), 13384 states have internal predecessors, (28367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13385 states to 13385 states and 28367 transitions. [2022-09-16 10:39:54,054 INFO L78 Accepts]: Start accepts. Automaton has 13385 states and 28367 transitions. Word has length 71 [2022-09-16 10:39:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:54,054 INFO L495 AbstractCegarLoop]: Abstraction has 13385 states and 28367 transitions. [2022-09-16 10:39:54,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 13385 states and 28367 transitions. [2022-09-16 10:39:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:54,056 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:54,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:54,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-09-16 10:39:54,057 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2079592436, now seen corresponding path program 40 times [2022-09-16 10:39:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:54,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228154741] [2022-09-16 10:39:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:54,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228154741] [2022-09-16 10:39:54,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228154741] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:54,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:54,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:54,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891569784] [2022-09-16 10:39:54,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:54,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:54,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:54,317 INFO L87 Difference]: Start difference. First operand 13385 states and 28367 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:55,864 INFO L93 Difference]: Finished difference Result 19044 states and 40268 transitions. [2022-09-16 10:39:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:39:55,865 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:55,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:55,946 INFO L225 Difference]: With dead ends: 19044 [2022-09-16 10:39:55,947 INFO L226 Difference]: Without dead ends: 19044 [2022-09-16 10:39:55,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:39:55,947 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 1663 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:55,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 3399 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-09-16 10:39:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 13409. [2022-09-16 10:39:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13409 states, 13323 states have (on average 2.132777902874728) internal successors, (28415), 13408 states have internal predecessors, (28415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13409 states to 13409 states and 28415 transitions. [2022-09-16 10:39:56,124 INFO L78 Accepts]: Start accepts. Automaton has 13409 states and 28415 transitions. Word has length 71 [2022-09-16 10:39:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:56,125 INFO L495 AbstractCegarLoop]: Abstraction has 13409 states and 28415 transitions. [2022-09-16 10:39:56,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 13409 states and 28415 transitions. [2022-09-16 10:39:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:56,127 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:56,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:56,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-09-16 10:39:56,127 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1555224184, now seen corresponding path program 41 times [2022-09-16 10:39:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:56,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479917263] [2022-09-16 10:39:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:56,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:56,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479917263] [2022-09-16 10:39:56,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479917263] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:56,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:56,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417358604] [2022-09-16 10:39:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:56,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:56,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:56,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:56,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:56,389 INFO L87 Difference]: Start difference. First operand 13409 states and 28415 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:57,729 INFO L93 Difference]: Finished difference Result 22791 states and 48283 transitions. [2022-09-16 10:39:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:39:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:57,768 INFO L225 Difference]: With dead ends: 22791 [2022-09-16 10:39:57,768 INFO L226 Difference]: Without dead ends: 22791 [2022-09-16 10:39:57,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:39:57,769 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1649 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:57,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 3786 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:39:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22791 states. [2022-09-16 10:39:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22791 to 13403. [2022-09-16 10:39:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13317 states have (on average 2.1328377262146128) internal successors, (28403), 13402 states have internal predecessors, (28403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 28403 transitions. [2022-09-16 10:39:58,016 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 28403 transitions. Word has length 71 [2022-09-16 10:39:58,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:58,017 INFO L495 AbstractCegarLoop]: Abstraction has 13403 states and 28403 transitions. [2022-09-16 10:39:58,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:58,017 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 28403 transitions. [2022-09-16 10:39:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:39:58,019 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:58,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:58,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-09-16 10:39:58,019 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:58,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:58,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1831754500, now seen corresponding path program 42 times [2022-09-16 10:39:58,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:58,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019401885] [2022-09-16 10:39:58,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:58,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:58,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019401885] [2022-09-16 10:39:58,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019401885] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:58,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:58,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:39:58,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910646092] [2022-09-16 10:39:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:58,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:58,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:39:58,315 INFO L87 Difference]: Start difference. First operand 13403 states and 28403 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:59,843 INFO L93 Difference]: Finished difference Result 24251 states and 51444 transitions. [2022-09-16 10:39:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:39:59,843 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:39:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:59,880 INFO L225 Difference]: With dead ends: 24251 [2022-09-16 10:39:59,881 INFO L226 Difference]: Without dead ends: 24251 [2022-09-16 10:39:59,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:39:59,881 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1784 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:59,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 3237 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:39:59,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24251 states. [2022-09-16 10:40:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24251 to 13349. [2022-09-16 10:40:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13349 states, 13263 states have (on average 2.1333785719671265) internal successors, (28295), 13348 states have internal predecessors, (28295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13349 states to 13349 states and 28295 transitions. [2022-09-16 10:40:00,127 INFO L78 Accepts]: Start accepts. Automaton has 13349 states and 28295 transitions. Word has length 71 [2022-09-16 10:40:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:00,127 INFO L495 AbstractCegarLoop]: Abstraction has 13349 states and 28295 transitions. [2022-09-16 10:40:00,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 13349 states and 28295 transitions. [2022-09-16 10:40:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:00,129 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:00,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:00,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-09-16 10:40:00,129 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash 954117892, now seen corresponding path program 43 times [2022-09-16 10:40:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:00,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113903265] [2022-09-16 10:40:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:00,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:00,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113903265] [2022-09-16 10:40:00,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113903265] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:00,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:00,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:00,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148827113] [2022-09-16 10:40:00,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:00,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:00,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:00,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:00,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:00,417 INFO L87 Difference]: Start difference. First operand 13349 states and 28295 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:02,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:02,050 INFO L93 Difference]: Finished difference Result 25604 states and 54254 transitions. [2022-09-16 10:40:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:02,050 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:02,094 INFO L225 Difference]: With dead ends: 25604 [2022-09-16 10:40:02,094 INFO L226 Difference]: Without dead ends: 25604 [2022-09-16 10:40:02,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=467, Invalid=1093, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:02,094 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1621 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:02,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 3322 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:02,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25604 states. [2022-09-16 10:40:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25604 to 13352. [2022-09-16 10:40:02,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13352 states, 13266 states have (on average 2.1333484094678123) internal successors, (28301), 13351 states have internal predecessors, (28301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13352 states to 13352 states and 28301 transitions. [2022-09-16 10:40:02,337 INFO L78 Accepts]: Start accepts. Automaton has 13352 states and 28301 transitions. Word has length 71 [2022-09-16 10:40:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:02,337 INFO L495 AbstractCegarLoop]: Abstraction has 13352 states and 28301 transitions. [2022-09-16 10:40:02,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:02,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13352 states and 28301 transitions. [2022-09-16 10:40:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:02,339 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:02,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:02,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-09-16 10:40:02,340 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:02,340 INFO L85 PathProgramCache]: Analyzing trace with hash -997686178, now seen corresponding path program 44 times [2022-09-16 10:40:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:02,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639760724] [2022-09-16 10:40:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:02,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:02,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:02,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639760724] [2022-09-16 10:40:02,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639760724] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:02,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:02,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492507384] [2022-09-16 10:40:02,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:02,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:02,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:02,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:02,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:02,615 INFO L87 Difference]: Start difference. First operand 13352 states and 28301 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:03,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:03,951 INFO L93 Difference]: Finished difference Result 19762 states and 41957 transitions. [2022-09-16 10:40:03,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:40:03,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:03,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:03,982 INFO L225 Difference]: With dead ends: 19762 [2022-09-16 10:40:03,982 INFO L226 Difference]: Without dead ends: 19762 [2022-09-16 10:40:03,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:40:03,983 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1597 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:03,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 3276 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19762 states. [2022-09-16 10:40:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19762 to 13376. [2022-09-16 10:40:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13376 states, 13290 states have (on average 2.133107599699022) internal successors, (28349), 13375 states have internal predecessors, (28349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13376 states to 13376 states and 28349 transitions. [2022-09-16 10:40:04,219 INFO L78 Accepts]: Start accepts. Automaton has 13376 states and 28349 transitions. Word has length 71 [2022-09-16 10:40:04,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:04,219 INFO L495 AbstractCegarLoop]: Abstraction has 13376 states and 28349 transitions. [2022-09-16 10:40:04,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:04,220 INFO L276 IsEmpty]: Start isEmpty. Operand 13376 states and 28349 transitions. [2022-09-16 10:40:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:04,222 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:04,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:04,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-09-16 10:40:04,222 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:04,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash -45353834, now seen corresponding path program 45 times [2022-09-16 10:40:04,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:04,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918195123] [2022-09-16 10:40:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:04,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:04,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918195123] [2022-09-16 10:40:04,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918195123] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:04,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:04,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610806772] [2022-09-16 10:40:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:04,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:04,497 INFO L87 Difference]: Start difference. First operand 13376 states and 28349 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:06,007 INFO L93 Difference]: Finished difference Result 23509 states and 49972 transitions. [2022-09-16 10:40:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:40:06,007 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:06,072 INFO L225 Difference]: With dead ends: 23509 [2022-09-16 10:40:06,072 INFO L226 Difference]: Without dead ends: 23509 [2022-09-16 10:40:06,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:06,077 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1633 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:06,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 3639 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23509 states. [2022-09-16 10:40:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23509 to 13370. [2022-09-16 10:40:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13370 states, 13284 states have (on average 2.1331677205660946) internal successors, (28337), 13369 states have internal predecessors, (28337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13370 states to 13370 states and 28337 transitions. [2022-09-16 10:40:06,334 INFO L78 Accepts]: Start accepts. Automaton has 13370 states and 28337 transitions. Word has length 71 [2022-09-16 10:40:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:06,334 INFO L495 AbstractCegarLoop]: Abstraction has 13370 states and 28337 transitions. [2022-09-16 10:40:06,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 13370 states and 28337 transitions. [2022-09-16 10:40:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:06,336 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:06,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:06,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-09-16 10:40:06,337 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash -70164974, now seen corresponding path program 46 times [2022-09-16 10:40:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:06,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924776495] [2022-09-16 10:40:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:06,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:06,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924776495] [2022-09-16 10:40:06,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924776495] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:06,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:06,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:06,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601981456] [2022-09-16 10:40:06,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:06,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:06,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:06,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:06,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:06,632 INFO L87 Difference]: Start difference. First operand 13370 states and 28337 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:08,292 INFO L93 Difference]: Finished difference Result 24404 states and 51759 transitions. [2022-09-16 10:40:08,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:08,292 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:08,351 INFO L225 Difference]: With dead ends: 24404 [2022-09-16 10:40:08,351 INFO L226 Difference]: Without dead ends: 24404 [2022-09-16 10:40:08,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:08,355 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1796 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:08,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 3296 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24404 states. [2022-09-16 10:40:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24404 to 13343. [2022-09-16 10:40:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13343 states, 13257 states have (on average 2.1334389379195895) internal successors, (28283), 13342 states have internal predecessors, (28283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:08,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13343 states to 13343 states and 28283 transitions. [2022-09-16 10:40:08,614 INFO L78 Accepts]: Start accepts. Automaton has 13343 states and 28283 transitions. Word has length 71 [2022-09-16 10:40:08,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:08,614 INFO L495 AbstractCegarLoop]: Abstraction has 13343 states and 28283 transitions. [2022-09-16 10:40:08,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13343 states and 28283 transitions. [2022-09-16 10:40:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:08,616 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:08,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:08,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-09-16 10:40:08,616 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -540819658, now seen corresponding path program 47 times [2022-09-16 10:40:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781081003] [2022-09-16 10:40:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:08,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:08,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781081003] [2022-09-16 10:40:08,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781081003] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:08,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:08,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253011256] [2022-09-16 10:40:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:08,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:08,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:08,943 INFO L87 Difference]: Start difference. First operand 13343 states and 28283 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:10,463 INFO L93 Difference]: Finished difference Result 18483 states and 39125 transitions. [2022-09-16 10:40:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:40:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:10,491 INFO L225 Difference]: With dead ends: 18483 [2022-09-16 10:40:10,492 INFO L226 Difference]: Without dead ends: 18483 [2022-09-16 10:40:10,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=430, Invalid=1052, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:40:10,492 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1775 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:10,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 2798 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18483 states. [2022-09-16 10:40:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18483 to 13397. [2022-09-16 10:40:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13311 states have (on average 2.132897603485839) internal successors, (28391), 13396 states have internal predecessors, (28391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 28391 transitions. [2022-09-16 10:40:10,689 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 28391 transitions. Word has length 71 [2022-09-16 10:40:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:10,689 INFO L495 AbstractCegarLoop]: Abstraction has 13397 states and 28391 transitions. [2022-09-16 10:40:10,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:10,689 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 28391 transitions. [2022-09-16 10:40:10,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:10,691 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:10,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:10,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-09-16 10:40:10,692 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:10,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1496061634, now seen corresponding path program 48 times [2022-09-16 10:40:10,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:10,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656993536] [2022-09-16 10:40:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:10,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:10,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:10,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656993536] [2022-09-16 10:40:10,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656993536] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:10,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:10,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:10,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142593228] [2022-09-16 10:40:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:10,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:10,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:10,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:10,958 INFO L87 Difference]: Start difference. First operand 13397 states and 28391 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:12,434 INFO L93 Difference]: Finished difference Result 19627 states and 41690 transitions. [2022-09-16 10:40:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:40:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:12,463 INFO L225 Difference]: With dead ends: 19627 [2022-09-16 10:40:12,464 INFO L226 Difference]: Without dead ends: 19627 [2022-09-16 10:40:12,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=531, Invalid=1191, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:40:12,464 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1656 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:12,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 3092 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19627 states. [2022-09-16 10:40:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19627 to 13403. [2022-09-16 10:40:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13317 states have (on average 2.1328377262146128) internal successors, (28403), 13402 states have internal predecessors, (28403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 28403 transitions. [2022-09-16 10:40:12,663 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 28403 transitions. Word has length 71 [2022-09-16 10:40:12,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:12,663 INFO L495 AbstractCegarLoop]: Abstraction has 13403 states and 28403 transitions. [2022-09-16 10:40:12,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 28403 transitions. [2022-09-16 10:40:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:12,665 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:12,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:12,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-09-16 10:40:12,666 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:12,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2020429886, now seen corresponding path program 49 times [2022-09-16 10:40:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:12,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632583809] [2022-09-16 10:40:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:12,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:12,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632583809] [2022-09-16 10:40:12,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632583809] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:12,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:12,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:12,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79599232] [2022-09-16 10:40:12,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:12,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:12,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:12,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:12,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:12,897 INFO L87 Difference]: Start difference. First operand 13403 states and 28403 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:14,198 INFO L93 Difference]: Finished difference Result 22236 states and 47152 transitions. [2022-09-16 10:40:14,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:40:14,198 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:14,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:14,233 INFO L225 Difference]: With dead ends: 22236 [2022-09-16 10:40:14,233 INFO L226 Difference]: Without dead ends: 22236 [2022-09-16 10:40:14,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:40:14,234 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1884 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1884 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:14,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1884 Valid, 3320 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:40:14,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22236 states. [2022-09-16 10:40:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22236 to 13385. [2022-09-16 10:40:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13385 states, 13299 states have (on average 2.1330175201142945) internal successors, (28367), 13384 states have internal predecessors, (28367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13385 states to 13385 states and 28367 transitions. [2022-09-16 10:40:14,458 INFO L78 Accepts]: Start accepts. Automaton has 13385 states and 28367 transitions. Word has length 71 [2022-09-16 10:40:14,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:14,458 INFO L495 AbstractCegarLoop]: Abstraction has 13385 states and 28367 transitions. [2022-09-16 10:40:14,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13385 states and 28367 transitions. [2022-09-16 10:40:14,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:14,460 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:14,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:14,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-09-16 10:40:14,460 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:14,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:14,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1673377150, now seen corresponding path program 50 times [2022-09-16 10:40:14,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:14,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219858136] [2022-09-16 10:40:14,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:14,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:14,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219858136] [2022-09-16 10:40:14,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219858136] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:14,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:14,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701677740] [2022-09-16 10:40:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:14,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:14,814 INFO L87 Difference]: Start difference. First operand 13385 states and 28367 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:16,183 INFO L93 Difference]: Finished difference Result 18570 states and 39308 transitions. [2022-09-16 10:40:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:40:16,183 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:16,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:16,210 INFO L225 Difference]: With dead ends: 18570 [2022-09-16 10:40:16,211 INFO L226 Difference]: Without dead ends: 18570 [2022-09-16 10:40:16,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:40:16,211 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 1581 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:16,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 3380 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18570 states. [2022-09-16 10:40:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18570 to 13409. [2022-09-16 10:40:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13409 states, 13323 states have (on average 2.132777902874728) internal successors, (28415), 13408 states have internal predecessors, (28415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13409 states to 13409 states and 28415 transitions. [2022-09-16 10:40:16,406 INFO L78 Accepts]: Start accepts. Automaton has 13409 states and 28415 transitions. Word has length 71 [2022-09-16 10:40:16,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:16,406 INFO L495 AbstractCegarLoop]: Abstraction has 13409 states and 28415 transitions. [2022-09-16 10:40:16,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:16,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13409 states and 28415 transitions. [2022-09-16 10:40:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:16,408 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:16,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:16,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-09-16 10:40:16,409 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:16,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1149008898, now seen corresponding path program 51 times [2022-09-16 10:40:16,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:16,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165194276] [2022-09-16 10:40:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:16,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165194276] [2022-09-16 10:40:16,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165194276] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:16,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:16,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:16,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385842489] [2022-09-16 10:40:16,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:16,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:16,672 INFO L87 Difference]: Start difference. First operand 13409 states and 28415 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:18,168 INFO L93 Difference]: Finished difference Result 22317 states and 47323 transitions. [2022-09-16 10:40:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:40:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:18,201 INFO L225 Difference]: With dead ends: 22317 [2022-09-16 10:40:18,202 INFO L226 Difference]: Without dead ends: 22317 [2022-09-16 10:40:18,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:18,202 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1644 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:18,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 3600 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22317 states. [2022-09-16 10:40:18,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22317 to 13403. [2022-09-16 10:40:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13317 states have (on average 2.1328377262146128) internal successors, (28403), 13402 states have internal predecessors, (28403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 28403 transitions. [2022-09-16 10:40:18,493 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 28403 transitions. Word has length 71 [2022-09-16 10:40:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:18,493 INFO L495 AbstractCegarLoop]: Abstraction has 13403 states and 28403 transitions. [2022-09-16 10:40:18,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 28403 transitions. [2022-09-16 10:40:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:18,495 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:18,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:18,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-09-16 10:40:18,496 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2056997510, now seen corresponding path program 52 times [2022-09-16 10:40:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:18,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930552142] [2022-09-16 10:40:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:18,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:18,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930552142] [2022-09-16 10:40:18,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930552142] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:18,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:18,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:18,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080685466] [2022-09-16 10:40:18,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:18,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:18,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:18,748 INFO L87 Difference]: Start difference. First operand 13403 states and 28403 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:20,463 INFO L93 Difference]: Finished difference Result 24403 states and 51821 transitions. [2022-09-16 10:40:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:20,500 INFO L225 Difference]: With dead ends: 24403 [2022-09-16 10:40:20,500 INFO L226 Difference]: Without dead ends: 24403 [2022-09-16 10:40:20,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=475, Invalid=1085, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:20,501 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 1629 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:20,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 3086 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:20,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24403 states. [2022-09-16 10:40:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24403 to 13349. [2022-09-16 10:40:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13349 states, 13263 states have (on average 2.1333785719671265) internal successors, (28295), 13348 states have internal predecessors, (28295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13349 states to 13349 states and 28295 transitions. [2022-09-16 10:40:20,724 INFO L78 Accepts]: Start accepts. Automaton has 13349 states and 28295 transitions. Word has length 71 [2022-09-16 10:40:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:20,724 INFO L495 AbstractCegarLoop]: Abstraction has 13349 states and 28295 transitions. [2022-09-16 10:40:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 13349 states and 28295 transitions. [2022-09-16 10:40:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:20,726 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:20,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:20,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-09-16 10:40:20,727 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash -344041256, now seen corresponding path program 53 times [2022-09-16 10:40:20,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:20,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260493144] [2022-09-16 10:40:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:20,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:20,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:20,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260493144] [2022-09-16 10:40:20,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260493144] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:20,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:20,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274501738] [2022-09-16 10:40:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:20,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:20,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:20,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:20,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:20,977 INFO L87 Difference]: Start difference. First operand 13349 states and 28295 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:22,511 INFO L93 Difference]: Finished difference Result 18775 states and 39918 transitions. [2022-09-16 10:40:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:22,511 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:22,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:22,540 INFO L225 Difference]: With dead ends: 18775 [2022-09-16 10:40:22,540 INFO L226 Difference]: Without dead ends: 18775 [2022-09-16 10:40:22,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=465, Invalid=1095, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:22,541 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1660 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:22,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 2583 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18775 states. [2022-09-16 10:40:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18775 to 13362. [2022-09-16 10:40:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13276 states have (on average 2.1333232901476347) internal successors, (28322), 13361 states have internal predecessors, (28322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 28322 transitions. [2022-09-16 10:40:22,829 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 28322 transitions. Word has length 71 [2022-09-16 10:40:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:22,830 INFO L495 AbstractCegarLoop]: Abstraction has 13362 states and 28322 transitions. [2022-09-16 10:40:22,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 28322 transitions. [2022-09-16 10:40:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:22,832 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:22,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:22,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-09-16 10:40:22,832 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1382809540, now seen corresponding path program 54 times [2022-09-16 10:40:22,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:22,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857136284] [2022-09-16 10:40:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:22,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:23,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:23,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857136284] [2022-09-16 10:40:23,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857136284] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:23,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:23,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:23,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160330645] [2022-09-16 10:40:23,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:23,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:23,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:23,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:23,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:23,121 INFO L87 Difference]: Start difference. First operand 13362 states and 28322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:24,616 INFO L93 Difference]: Finished difference Result 19027 states and 40434 transitions. [2022-09-16 10:40:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:40:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:24,648 INFO L225 Difference]: With dead ends: 19027 [2022-09-16 10:40:24,648 INFO L226 Difference]: Without dead ends: 19027 [2022-09-16 10:40:24,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=565, Invalid=1241, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:40:24,648 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1581 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:24,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 3441 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:24,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19027 states. [2022-09-16 10:40:24,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19027 to 13374. [2022-09-16 10:40:24,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13374 states, 13288 states have (on average 2.1332028898254065) internal successors, (28346), 13373 states have internal predecessors, (28346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13374 states to 13374 states and 28346 transitions. [2022-09-16 10:40:24,856 INFO L78 Accepts]: Start accepts. Automaton has 13374 states and 28346 transitions. Word has length 71 [2022-09-16 10:40:24,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:24,857 INFO L495 AbstractCegarLoop]: Abstraction has 13374 states and 28346 transitions. [2022-09-16 10:40:24,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:24,857 INFO L276 IsEmpty]: Start isEmpty. Operand 13374 states and 28346 transitions. [2022-09-16 10:40:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:24,859 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:24,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:24,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-09-16 10:40:24,859 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash 654071752, now seen corresponding path program 55 times [2022-09-16 10:40:24,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:24,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343933830] [2022-09-16 10:40:24,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:24,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:25,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343933830] [2022-09-16 10:40:25,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343933830] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:25,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:25,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012969393] [2022-09-16 10:40:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:25,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:25,035 INFO L87 Difference]: Start difference. First operand 13374 states and 28346 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:26,461 INFO L93 Difference]: Finished difference Result 18892 states and 40155 transitions. [2022-09-16 10:40:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:40:26,461 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:26,487 INFO L225 Difference]: With dead ends: 18892 [2022-09-16 10:40:26,487 INFO L226 Difference]: Without dead ends: 18892 [2022-09-16 10:40:26,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=598, Invalid=1294, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:40:26,488 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 1624 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:26,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 3135 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18892 states. [2022-09-16 10:40:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18892 to 13380. [2022-09-16 10:40:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13380 states, 13294 states have (on average 2.133142771174966) internal successors, (28358), 13379 states have internal predecessors, (28358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13380 states to 13380 states and 28358 transitions. [2022-09-16 10:40:26,676 INFO L78 Accepts]: Start accepts. Automaton has 13380 states and 28358 transitions. Word has length 71 [2022-09-16 10:40:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:26,676 INFO L495 AbstractCegarLoop]: Abstraction has 13380 states and 28358 transitions. [2022-09-16 10:40:26,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 13380 states and 28358 transitions. [2022-09-16 10:40:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:26,678 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:26,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:26,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-09-16 10:40:26,678 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:26,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1178440004, now seen corresponding path program 56 times [2022-09-16 10:40:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:26,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116032926] [2022-09-16 10:40:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:26,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:26,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116032926] [2022-09-16 10:40:26,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116032926] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:26,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:26,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:26,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430326761] [2022-09-16 10:40:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:26,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:26,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:26,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:26,860 INFO L87 Difference]: Start difference. First operand 13380 states and 28358 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:28,293 INFO L93 Difference]: Finished difference Result 21447 states and 45525 transitions. [2022-09-16 10:40:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:40:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:28,326 INFO L225 Difference]: With dead ends: 21447 [2022-09-16 10:40:28,326 INFO L226 Difference]: Without dead ends: 21447 [2022-09-16 10:40:28,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=631, Invalid=1349, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:40:28,327 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 1569 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:28,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 3886 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:28,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21447 states. [2022-09-16 10:40:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21447 to 13362. [2022-09-16 10:40:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13276 states have (on average 2.1333232901476347) internal successors, (28322), 13361 states have internal predecessors, (28322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 28322 transitions. [2022-09-16 10:40:28,560 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 28322 transitions. Word has length 71 [2022-09-16 10:40:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:28,560 INFO L495 AbstractCegarLoop]: Abstraction has 13362 states and 28322 transitions. [2022-09-16 10:40:28,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 28322 transitions. [2022-09-16 10:40:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:28,562 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:28,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:28,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-09-16 10:40:28,563 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:28,563 INFO L85 PathProgramCache]: Analyzing trace with hash -181533714, now seen corresponding path program 57 times [2022-09-16 10:40:28,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:28,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956937238] [2022-09-16 10:40:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:28,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:28,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956937238] [2022-09-16 10:40:28,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956937238] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:28,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:28,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811525476] [2022-09-16 10:40:28,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:28,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:28,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:28,770 INFO L87 Difference]: Start difference. First operand 13362 states and 28322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:30,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:30,038 INFO L93 Difference]: Finished difference Result 18195 states and 38531 transitions. [2022-09-16 10:40:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:40:30,039 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:30,065 INFO L225 Difference]: With dead ends: 18195 [2022-09-16 10:40:30,065 INFO L226 Difference]: Without dead ends: 18195 [2022-09-16 10:40:30,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:40:30,066 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1613 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:30,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 3519 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:30,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18195 states. [2022-09-16 10:40:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18195 to 13416. [2022-09-16 10:40:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13416 states, 13330 states have (on average 2.13278319579895) internal successors, (28430), 13415 states have internal predecessors, (28430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13416 states to 13416 states and 28430 transitions. [2022-09-16 10:40:30,262 INFO L78 Accepts]: Start accepts. Automaton has 13416 states and 28430 transitions. Word has length 71 [2022-09-16 10:40:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:30,262 INFO L495 AbstractCegarLoop]: Abstraction has 13416 states and 28430 transitions. [2022-09-16 10:40:30,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 13416 states and 28430 transitions. [2022-09-16 10:40:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:30,265 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:30,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:30,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-09-16 10:40:30,265 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:30,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:30,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1567144610, now seen corresponding path program 58 times [2022-09-16 10:40:30,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:30,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275051333] [2022-09-16 10:40:30,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:30,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:30,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:30,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275051333] [2022-09-16 10:40:30,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275051333] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:30,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:30,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404882796] [2022-09-16 10:40:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:30,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:30,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:30,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:30,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:30,529 INFO L87 Difference]: Start difference. First operand 13416 states and 28430 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:31,949 INFO L93 Difference]: Finished difference Result 19339 states and 41096 transitions. [2022-09-16 10:40:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:40:31,951 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:31,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:31,977 INFO L225 Difference]: With dead ends: 19339 [2022-09-16 10:40:31,977 INFO L226 Difference]: Without dead ends: 19339 [2022-09-16 10:40:31,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:40:31,979 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1638 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:31,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 3076 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:31,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19339 states. [2022-09-16 10:40:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19339 to 13422. [2022-09-16 10:40:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13336 states have (on average 2.132723455308938) internal successors, (28442), 13421 states have internal predecessors, (28442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 28442 transitions. [2022-09-16 10:40:32,161 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 28442 transitions. Word has length 71 [2022-09-16 10:40:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:32,162 INFO L495 AbstractCegarLoop]: Abstraction has 13422 states and 28442 transitions. [2022-09-16 10:40:32,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 28442 transitions. [2022-09-16 10:40:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:32,164 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:32,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:32,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-09-16 10:40:32,164 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2091512862, now seen corresponding path program 59 times [2022-09-16 10:40:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:32,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981779385] [2022-09-16 10:40:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:32,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:32,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981779385] [2022-09-16 10:40:32,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981779385] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:32,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:32,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888079831] [2022-09-16 10:40:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:32,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:32,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:32,378 INFO L87 Difference]: Start difference. First operand 13422 states and 28442 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:34,067 INFO L93 Difference]: Finished difference Result 21948 states and 46558 transitions. [2022-09-16 10:40:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:40:34,068 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:34,101 INFO L225 Difference]: With dead ends: 21948 [2022-09-16 10:40:34,102 INFO L226 Difference]: Without dead ends: 21948 [2022-09-16 10:40:34,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:40:34,102 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1690 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:34,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3498 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:34,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21948 states. [2022-09-16 10:40:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21948 to 13404. [2022-09-16 10:40:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13404 states, 13318 states have (on average 2.1329028382640036) internal successors, (28406), 13403 states have internal predecessors, (28406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13404 states to 13404 states and 28406 transitions. [2022-09-16 10:40:34,319 INFO L78 Accepts]: Start accepts. Automaton has 13404 states and 28406 transitions. Word has length 71 [2022-09-16 10:40:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:34,319 INFO L495 AbstractCegarLoop]: Abstraction has 13404 states and 28406 transitions. [2022-09-16 10:40:34,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13404 states and 28406 transitions. [2022-09-16 10:40:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:34,321 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:34,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:34,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-09-16 10:40:34,322 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:34,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:34,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2004804966, now seen corresponding path program 60 times [2022-09-16 10:40:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:34,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585612980] [2022-09-16 10:40:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:34,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:34,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585612980] [2022-09-16 10:40:34,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585612980] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:34,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:34,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:34,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999814674] [2022-09-16 10:40:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:34,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:34,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:34,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:34,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:34,560 INFO L87 Difference]: Start difference. First operand 13404 states and 28406 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:36,067 INFO L93 Difference]: Finished difference Result 18630 states and 39422 transitions. [2022-09-16 10:40:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:40:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:36,099 INFO L225 Difference]: With dead ends: 18630 [2022-09-16 10:40:36,099 INFO L226 Difference]: Without dead ends: 18630 [2022-09-16 10:40:36,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:40:36,100 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 1589 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:36,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3213 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18630 states. [2022-09-16 10:40:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18630 to 13428. [2022-09-16 10:40:36,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13428 states, 13342 states have (on average 2.1326637685504424) internal successors, (28454), 13427 states have internal predecessors, (28454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13428 states to 13428 states and 28454 transitions. [2022-09-16 10:40:36,300 INFO L78 Accepts]: Start accepts. Automaton has 13428 states and 28454 transitions. Word has length 71 [2022-09-16 10:40:36,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:36,300 INFO L495 AbstractCegarLoop]: Abstraction has 13428 states and 28454 transitions. [2022-09-16 10:40:36,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:36,300 INFO L276 IsEmpty]: Start isEmpty. Operand 13428 states and 28454 transitions. [2022-09-16 10:40:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:36,302 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:36,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:36,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-09-16 10:40:36,303 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1765794078, now seen corresponding path program 61 times [2022-09-16 10:40:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:36,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664792289] [2022-09-16 10:40:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:36,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:36,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664792289] [2022-09-16 10:40:36,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664792289] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:36,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:36,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:36,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585676058] [2022-09-16 10:40:36,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:36,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:36,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:36,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:36,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:36,568 INFO L87 Difference]: Start difference. First operand 13428 states and 28454 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:38,546 INFO L93 Difference]: Finished difference Result 22377 states and 47437 transitions. [2022-09-16 10:40:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:40:38,546 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:38,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:38,580 INFO L225 Difference]: With dead ends: 22377 [2022-09-16 10:40:38,580 INFO L226 Difference]: Without dead ends: 22377 [2022-09-16 10:40:38,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:38,581 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1567 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:38,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 3785 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:40:38,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22377 states. [2022-09-16 10:40:38,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22377 to 13422. [2022-09-16 10:40:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13336 states have (on average 2.132723455308938) internal successors, (28442), 13421 states have internal predecessors, (28442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 28442 transitions. [2022-09-16 10:40:38,800 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 28442 transitions. Word has length 71 [2022-09-16 10:40:38,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:38,800 INFO L495 AbstractCegarLoop]: Abstraction has 13422 states and 28442 transitions. [2022-09-16 10:40:38,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 28442 transitions. [2022-09-16 10:40:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:38,802 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:38,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-09-16 10:40:38,803 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1621184606, now seen corresponding path program 62 times [2022-09-16 10:40:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:38,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620163449] [2022-09-16 10:40:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:38,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:39,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620163449] [2022-09-16 10:40:39,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620163449] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:39,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:39,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528249704] [2022-09-16 10:40:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:39,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:39,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:39,068 INFO L87 Difference]: Start difference. First operand 13422 states and 28442 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:40,728 INFO L93 Difference]: Finished difference Result 23837 states and 50598 transitions. [2022-09-16 10:40:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:40,729 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:40,767 INFO L225 Difference]: With dead ends: 23837 [2022-09-16 10:40:40,767 INFO L226 Difference]: Without dead ends: 23837 [2022-09-16 10:40:40,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:40,769 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1685 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3622 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23837 states. [2022-09-16 10:40:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23837 to 13368. [2022-09-16 10:40:40,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13368 states, 13282 states have (on average 2.133263062791748) internal successors, (28334), 13367 states have internal predecessors, (28334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 28334 transitions. [2022-09-16 10:40:41,013 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 28334 transitions. Word has length 71 [2022-09-16 10:40:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:41,013 INFO L495 AbstractCegarLoop]: Abstraction has 13368 states and 28334 transitions. [2022-09-16 10:40:41,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 28334 transitions. [2022-09-16 10:40:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:41,016 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:41,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:41,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-09-16 10:40:41,016 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:41,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:41,016 INFO L85 PathProgramCache]: Analyzing trace with hash 743547998, now seen corresponding path program 63 times [2022-09-16 10:40:41,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:41,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024740167] [2022-09-16 10:40:41,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:41,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:41,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024740167] [2022-09-16 10:40:41,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024740167] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:41,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:41,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:41,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549920930] [2022-09-16 10:40:41,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:41,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:41,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:41,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:41,378 INFO L87 Difference]: Start difference. First operand 13368 states and 28334 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:42,724 INFO L93 Difference]: Finished difference Result 25778 states and 54608 transitions. [2022-09-16 10:40:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:42,768 INFO L225 Difference]: With dead ends: 25778 [2022-09-16 10:40:42,768 INFO L226 Difference]: Without dead ends: 25778 [2022-09-16 10:40:42,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=466, Invalid=1094, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:42,769 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1748 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:42,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 3514 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:42,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25778 states. [2022-09-16 10:40:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25778 to 13371. [2022-09-16 10:40:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13285 states have (on average 2.13323296951449) internal successors, (28340), 13370 states have internal predecessors, (28340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 28340 transitions. [2022-09-16 10:40:43,013 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 28340 transitions. Word has length 71 [2022-09-16 10:40:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:43,013 INFO L495 AbstractCegarLoop]: Abstraction has 13371 states and 28340 transitions. [2022-09-16 10:40:43,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 28340 transitions. [2022-09-16 10:40:43,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:43,016 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:43,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:43,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-09-16 10:40:43,016 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1208256072, now seen corresponding path program 64 times [2022-09-16 10:40:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:43,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141554049] [2022-09-16 10:40:43,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:43,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:43,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141554049] [2022-09-16 10:40:43,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141554049] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:43,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:43,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:43,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595835703] [2022-09-16 10:40:43,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:43,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:43,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:43,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:43,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:43,291 INFO L87 Difference]: Start difference. First operand 13371 states and 28340 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:44,626 INFO L93 Difference]: Finished difference Result 19708 states and 41843 transitions. [2022-09-16 10:40:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:40:44,626 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:44,661 INFO L225 Difference]: With dead ends: 19708 [2022-09-16 10:40:44,661 INFO L226 Difference]: Without dead ends: 19708 [2022-09-16 10:40:44,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:40:44,662 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1664 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:44,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 3305 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19708 states. [2022-09-16 10:40:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19708 to 13395. [2022-09-16 10:40:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13309 states have (on average 2.1329927116988503) internal successors, (28388), 13394 states have internal predecessors, (28388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:44,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 28388 transitions. [2022-09-16 10:40:44,880 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 28388 transitions. Word has length 71 [2022-09-16 10:40:44,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:44,880 INFO L495 AbstractCegarLoop]: Abstraction has 13395 states and 28388 transitions. [2022-09-16 10:40:44,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 28388 transitions. [2022-09-16 10:40:44,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:44,882 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:44,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:44,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-09-16 10:40:44,882 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash -255923728, now seen corresponding path program 65 times [2022-09-16 10:40:44,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:44,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553243411] [2022-09-16 10:40:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:45,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553243411] [2022-09-16 10:40:45,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553243411] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:45,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:45,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:45,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360211778] [2022-09-16 10:40:45,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:45,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:45,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:45,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:45,205 INFO L87 Difference]: Start difference. First operand 13395 states and 28388 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:46,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:46,494 INFO L93 Difference]: Finished difference Result 23455 states and 49858 transitions. [2022-09-16 10:40:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:40:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:46,524 INFO L225 Difference]: With dead ends: 23455 [2022-09-16 10:40:46,524 INFO L226 Difference]: Without dead ends: 23455 [2022-09-16 10:40:46,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:46,525 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1495 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:46,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 3931 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:46,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23455 states. [2022-09-16 10:40:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23455 to 13389. [2022-09-16 10:40:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13389 states, 13303 states have (on average 2.133052694880854) internal successors, (28376), 13388 states have internal predecessors, (28376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 28376 transitions. [2022-09-16 10:40:46,740 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 28376 transitions. Word has length 71 [2022-09-16 10:40:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:46,740 INFO L495 AbstractCegarLoop]: Abstraction has 13389 states and 28376 transitions. [2022-09-16 10:40:46,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 28376 transitions. [2022-09-16 10:40:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:46,742 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:46,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:46,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-09-16 10:40:46,743 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash -280734868, now seen corresponding path program 66 times [2022-09-16 10:40:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:46,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236578348] [2022-09-16 10:40:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:47,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:47,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236578348] [2022-09-16 10:40:47,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236578348] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:47,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:47,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:47,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736975101] [2022-09-16 10:40:47,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:47,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:47,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:47,031 INFO L87 Difference]: Start difference. First operand 13389 states and 28376 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:48,706 INFO L93 Difference]: Finished difference Result 24350 states and 51645 transitions. [2022-09-16 10:40:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:48,748 INFO L225 Difference]: With dead ends: 24350 [2022-09-16 10:40:48,748 INFO L226 Difference]: Without dead ends: 24350 [2022-09-16 10:40:48,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:48,748 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1710 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:48,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 3395 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:48,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24350 states. [2022-09-16 10:40:49,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24350 to 13362. [2022-09-16 10:40:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13276 states have (on average 2.1333232901476347) internal successors, (28322), 13361 states have internal predecessors, (28322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 28322 transitions. [2022-09-16 10:40:49,063 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 28322 transitions. Word has length 71 [2022-09-16 10:40:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:49,063 INFO L495 AbstractCegarLoop]: Abstraction has 13362 states and 28322 transitions. [2022-09-16 10:40:49,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 28322 transitions. [2022-09-16 10:40:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:49,065 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:49,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:49,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-09-16 10:40:49,065 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1238288070, now seen corresponding path program 67 times [2022-09-16 10:40:49,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:49,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218916511] [2022-09-16 10:40:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:49,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:49,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218916511] [2022-09-16 10:40:49,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218916511] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:49,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:49,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966230902] [2022-09-16 10:40:49,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:49,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:49,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:49,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:49,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:49,327 INFO L87 Difference]: Start difference. First operand 13362 states and 28322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:50,638 INFO L93 Difference]: Finished difference Result 23764 states and 50213 transitions. [2022-09-16 10:40:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:50,639 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:50,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:50,676 INFO L225 Difference]: With dead ends: 23764 [2022-09-16 10:40:50,676 INFO L226 Difference]: Without dead ends: 23764 [2022-09-16 10:40:50,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=466, Invalid=1094, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:50,676 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1699 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:50,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 3817 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:50,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23764 states. [2022-09-16 10:40:50,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23764 to 13365. [2022-09-16 10:40:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13279 states have (on average 2.1332931696663904) internal successors, (28328), 13364 states have internal predecessors, (28328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 28328 transitions. [2022-09-16 10:40:50,881 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 28328 transitions. Word has length 71 [2022-09-16 10:40:50,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:50,881 INFO L495 AbstractCegarLoop]: Abstraction has 13365 states and 28328 transitions. [2022-09-16 10:40:50,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 28328 transitions. [2022-09-16 10:40:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:50,883 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:50,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:50,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-09-16 10:40:50,884 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:50,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:50,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1104875156, now seen corresponding path program 68 times [2022-09-16 10:40:50,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:50,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52062040] [2022-09-16 10:40:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:51,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:51,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52062040] [2022-09-16 10:40:51,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52062040] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:51,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:51,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:51,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860340227] [2022-09-16 10:40:51,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:51,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:51,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:51,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:51,145 INFO L87 Difference]: Start difference. First operand 13365 states and 28328 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:52,123 INFO L93 Difference]: Finished difference Result 19423 states and 41261 transitions. [2022-09-16 10:40:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:40:52,124 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:52,154 INFO L225 Difference]: With dead ends: 19423 [2022-09-16 10:40:52,154 INFO L226 Difference]: Without dead ends: 19423 [2022-09-16 10:40:52,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:40:52,162 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1462 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:52,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 3273 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:40:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19423 states. [2022-09-16 10:40:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19423 to 13389. [2022-09-16 10:40:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13389 states, 13303 states have (on average 2.133052694880854) internal successors, (28376), 13388 states have internal predecessors, (28376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 28376 transitions. [2022-09-16 10:40:52,390 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 28376 transitions. Word has length 71 [2022-09-16 10:40:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:52,390 INFO L495 AbstractCegarLoop]: Abstraction has 13389 states and 28376 transitions. [2022-09-16 10:40:52,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 28376 transitions. [2022-09-16 10:40:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:52,393 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:52,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:52,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-09-16 10:40:52,393 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2057207500, now seen corresponding path program 69 times [2022-09-16 10:40:52,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:52,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105648428] [2022-09-16 10:40:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:52,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:52,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105648428] [2022-09-16 10:40:52,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105648428] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:52,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:52,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:52,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973702941] [2022-09-16 10:40:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:52,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:52,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:52,567 INFO L87 Difference]: Start difference. First operand 13389 states and 28376 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:53,816 INFO L93 Difference]: Finished difference Result 23170 states and 49276 transitions. [2022-09-16 10:40:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:40:53,816 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:53,852 INFO L225 Difference]: With dead ends: 23170 [2022-09-16 10:40:53,852 INFO L226 Difference]: Without dead ends: 23170 [2022-09-16 10:40:53,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:40:53,853 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 1869 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:53,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 3719 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:40:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23170 states. [2022-09-16 10:40:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23170 to 13383. [2022-09-16 10:40:54,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13297 states have (on average 2.133112732195232) internal successors, (28364), 13382 states have internal predecessors, (28364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 28364 transitions. [2022-09-16 10:40:54,085 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 28364 transitions. Word has length 71 [2022-09-16 10:40:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:54,086 INFO L495 AbstractCegarLoop]: Abstraction has 13383 states and 28364 transitions. [2022-09-16 10:40:54,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 28364 transitions. [2022-09-16 10:40:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:54,088 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:54,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:54,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-09-16 10:40:54,088 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2032396360, now seen corresponding path program 70 times [2022-09-16 10:40:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:54,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898903539] [2022-09-16 10:40:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:54,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:54,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:54,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898903539] [2022-09-16 10:40:54,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898903539] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:54,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:54,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:54,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755681745] [2022-09-16 10:40:54,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:54,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:54,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:54,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:54,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:54,389 INFO L87 Difference]: Start difference. First operand 13383 states and 28364 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:56,152 INFO L93 Difference]: Finished difference Result 24236 states and 51414 transitions. [2022-09-16 10:40:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:56,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:56,187 INFO L225 Difference]: With dead ends: 24236 [2022-09-16 10:40:56,187 INFO L226 Difference]: Without dead ends: 24236 [2022-09-16 10:40:56,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:56,188 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1673 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:56,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 3632 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:40:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24236 states. [2022-09-16 10:40:56,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24236 to 13362. [2022-09-16 10:40:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13276 states have (on average 2.1333232901476347) internal successors, (28322), 13361 states have internal predecessors, (28322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 28322 transitions. [2022-09-16 10:40:56,408 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 28322 transitions. Word has length 71 [2022-09-16 10:40:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:56,408 INFO L495 AbstractCegarLoop]: Abstraction has 13362 states and 28322 transitions. [2022-09-16 10:40:56,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 28322 transitions. [2022-09-16 10:40:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:56,410 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:56,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:56,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-09-16 10:40:56,411 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1473900020, now seen corresponding path program 71 times [2022-09-16 10:40:56,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:56,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710414718] [2022-09-16 10:40:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:56,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:56,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:56,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710414718] [2022-09-16 10:40:56,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710414718] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:56,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:56,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:56,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34382756] [2022-09-16 10:40:56,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:56,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:56,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:56,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:56,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:56,600 INFO L87 Difference]: Start difference. First operand 13362 states and 28322 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:57,739 INFO L93 Difference]: Finished difference Result 25135 states and 53238 transitions. [2022-09-16 10:40:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:40:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:57,786 INFO L225 Difference]: With dead ends: 25135 [2022-09-16 10:40:57,786 INFO L226 Difference]: Without dead ends: 25135 [2022-09-16 10:40:57,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=458, Invalid=1102, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:40:57,787 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 1818 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:57,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 3880 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:40:57,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25135 states. [2022-09-16 10:40:57,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25135 to 13269. [2022-09-16 10:40:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13269 states, 13183 states have (on average 2.134036258818175) internal successors, (28133), 13268 states have internal predecessors, (28133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13269 states to 13269 states and 28133 transitions. [2022-09-16 10:40:58,024 INFO L78 Accepts]: Start accepts. Automaton has 13269 states and 28133 transitions. Word has length 71 [2022-09-16 10:40:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:58,024 INFO L495 AbstractCegarLoop]: Abstraction has 13269 states and 28133 transitions. [2022-09-16 10:40:58,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 13269 states and 28133 transitions. [2022-09-16 10:40:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:40:58,026 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:58,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:58,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-09-16 10:40:58,026 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash -350404054, now seen corresponding path program 72 times [2022-09-16 10:40:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:58,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434558443] [2022-09-16 10:40:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:58,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:58,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434558443] [2022-09-16 10:40:58,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434558443] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:58,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:58,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:40:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492630167] [2022-09-16 10:40:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:40:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:58,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:40:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:40:58,329 INFO L87 Difference]: Start difference. First operand 13269 states and 28133 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:59,985 INFO L93 Difference]: Finished difference Result 19107 states and 40389 transitions. [2022-09-16 10:40:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:40:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:40:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:00,013 INFO L225 Difference]: With dead ends: 19107 [2022-09-16 10:41:00,013 INFO L226 Difference]: Without dead ends: 19107 [2022-09-16 10:41:00,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:41:00,014 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1602 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3653 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:00,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 3653 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:41:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19107 states. [2022-09-16 10:41:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19107 to 13324. [2022-09-16 10:41:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13324 states, 13238 states have (on average 2.1334793775494787) internal successors, (28243), 13323 states have internal predecessors, (28243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13324 states to 13324 states and 28243 transitions. [2022-09-16 10:41:00,204 INFO L78 Accepts]: Start accepts. Automaton has 13324 states and 28243 transitions. Word has length 71 [2022-09-16 10:41:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:00,204 INFO L495 AbstractCegarLoop]: Abstraction has 13324 states and 28243 transitions. [2022-09-16 10:41:00,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13324 states and 28243 transitions. [2022-09-16 10:41:00,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:00,206 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:00,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:00,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-09-16 10:41:00,206 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1398274270, now seen corresponding path program 73 times [2022-09-16 10:41:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:00,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086229333] [2022-09-16 10:41:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:00,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086229333] [2022-09-16 10:41:00,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086229333] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:00,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:00,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:00,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485572192] [2022-09-16 10:41:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:00,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:00,441 INFO L87 Difference]: Start difference. First operand 13324 states and 28243 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:01,782 INFO L93 Difference]: Finished difference Result 20251 states and 42954 transitions. [2022-09-16 10:41:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:41:01,783 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:01,812 INFO L225 Difference]: With dead ends: 20251 [2022-09-16 10:41:01,812 INFO L226 Difference]: Without dead ends: 20251 [2022-09-16 10:41:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:41:01,812 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1660 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:01,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 3582 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20251 states. [2022-09-16 10:41:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20251 to 13330. [2022-09-16 10:41:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13244 states have (on average 2.1334189066747204) internal successors, (28255), 13329 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 28255 transitions. [2022-09-16 10:41:02,006 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 28255 transitions. Word has length 71 [2022-09-16 10:41:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:02,006 INFO L495 AbstractCegarLoop]: Abstraction has 13330 states and 28255 transitions. [2022-09-16 10:41:02,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 28255 transitions. [2022-09-16 10:41:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:02,008 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:02,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:02,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-09-16 10:41:02,008 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:02,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1922642522, now seen corresponding path program 74 times [2022-09-16 10:41:02,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:02,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638373166] [2022-09-16 10:41:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:02,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:02,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:02,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638373166] [2022-09-16 10:41:02,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638373166] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:02,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:02,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611738051] [2022-09-16 10:41:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:02,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:02,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:02,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:02,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:02,272 INFO L87 Difference]: Start difference. First operand 13330 states and 28255 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:03,697 INFO L93 Difference]: Finished difference Result 22860 states and 48416 transitions. [2022-09-16 10:41:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:41:03,697 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:03,735 INFO L225 Difference]: With dead ends: 22860 [2022-09-16 10:41:03,735 INFO L226 Difference]: Without dead ends: 22860 [2022-09-16 10:41:03,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:41:03,736 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1851 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:03,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 3995 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22860 states. [2022-09-16 10:41:03,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22860 to 13312. [2022-09-16 10:41:03,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13312 states, 13226 states have (on average 2.1336004838953575) internal successors, (28219), 13311 states have internal predecessors, (28219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13312 states to 13312 states and 28219 transitions. [2022-09-16 10:41:03,975 INFO L78 Accepts]: Start accepts. Automaton has 13312 states and 28219 transitions. Word has length 71 [2022-09-16 10:41:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:03,975 INFO L495 AbstractCegarLoop]: Abstraction has 13312 states and 28219 transitions. [2022-09-16 10:41:03,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 13312 states and 28219 transitions. [2022-09-16 10:41:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:03,977 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:03,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:03,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-09-16 10:41:03,977 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1835934626, now seen corresponding path program 75 times [2022-09-16 10:41:03,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:03,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974004122] [2022-09-16 10:41:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:03,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:04,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974004122] [2022-09-16 10:41:04,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974004122] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:04,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:04,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:04,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035302405] [2022-09-16 10:41:04,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:04,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:04,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:04,255 INFO L87 Difference]: Start difference. First operand 13312 states and 28219 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:05,780 INFO L93 Difference]: Finished difference Result 19542 states and 41280 transitions. [2022-09-16 10:41:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:41:05,780 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:05,809 INFO L225 Difference]: With dead ends: 19542 [2022-09-16 10:41:05,810 INFO L226 Difference]: Without dead ends: 19542 [2022-09-16 10:41:05,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:41:05,810 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1683 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:05,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 3343 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:05,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19542 states. [2022-09-16 10:41:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19542 to 13336. [2022-09-16 10:41:05,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 13250 states have (on average 2.133358490566038) internal successors, (28267), 13335 states have internal predecessors, (28267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 28267 transitions. [2022-09-16 10:41:06,003 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 28267 transitions. Word has length 71 [2022-09-16 10:41:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:06,004 INFO L495 AbstractCegarLoop]: Abstraction has 13336 states and 28267 transitions. [2022-09-16 10:41:06,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 28267 transitions. [2022-09-16 10:41:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:06,006 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:06,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:06,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-09-16 10:41:06,006 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1934664418, now seen corresponding path program 76 times [2022-09-16 10:41:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:06,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83136579] [2022-09-16 10:41:06,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:06,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:06,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:06,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83136579] [2022-09-16 10:41:06,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83136579] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:06,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:06,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:06,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826308871] [2022-09-16 10:41:06,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:06,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:06,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:06,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:06,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:06,278 INFO L87 Difference]: Start difference. First operand 13336 states and 28267 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:08,195 INFO L93 Difference]: Finished difference Result 23289 states and 49295 transitions. [2022-09-16 10:41:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:41:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:08,234 INFO L225 Difference]: With dead ends: 23289 [2022-09-16 10:41:08,235 INFO L226 Difference]: Without dead ends: 23289 [2022-09-16 10:41:08,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:41:08,235 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 1730 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:08,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 3448 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23289 states. [2022-09-16 10:41:08,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23289 to 13330. [2022-09-16 10:41:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13244 states have (on average 2.1334189066747204) internal successors, (28255), 13329 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 28255 transitions. [2022-09-16 10:41:08,481 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 28255 transitions. Word has length 71 [2022-09-16 10:41:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:08,481 INFO L495 AbstractCegarLoop]: Abstraction has 13330 states and 28255 transitions. [2022-09-16 10:41:08,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 28255 transitions. [2022-09-16 10:41:08,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:08,483 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:08,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:08,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-09-16 10:41:08,484 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:08,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1452314266, now seen corresponding path program 77 times [2022-09-16 10:41:08,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:08,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220808363] [2022-09-16 10:41:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:08,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220808363] [2022-09-16 10:41:08,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220808363] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:08,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:08,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:08,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027731194] [2022-09-16 10:41:08,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:08,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:08,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:08,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:08,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:08,760 INFO L87 Difference]: Start difference. First operand 13330 states and 28255 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:10,584 INFO L93 Difference]: Finished difference Result 24749 states and 52456 transitions. [2022-09-16 10:41:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:10,628 INFO L225 Difference]: With dead ends: 24749 [2022-09-16 10:41:10,629 INFO L226 Difference]: Without dead ends: 24749 [2022-09-16 10:41:10,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:10,629 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 1692 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:10,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 3210 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24749 states. [2022-09-16 10:41:10,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24749 to 13276. [2022-09-16 10:41:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13276 states, 13190 states have (on average 2.1339651250947687) internal successors, (28147), 13275 states have internal predecessors, (28147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:10,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13276 states to 13276 states and 28147 transitions. [2022-09-16 10:41:10,931 INFO L78 Accepts]: Start accepts. Automaton has 13276 states and 28147 transitions. Word has length 71 [2022-09-16 10:41:10,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:10,932 INFO L495 AbstractCegarLoop]: Abstraction has 13276 states and 28147 transitions. [2022-09-16 10:41:10,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:10,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13276 states and 28147 transitions. [2022-09-16 10:41:10,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:10,933 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:10,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:10,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-09-16 10:41:10,934 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 574677658, now seen corresponding path program 78 times [2022-09-16 10:41:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:10,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420134165] [2022-09-16 10:41:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:11,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420134165] [2022-09-16 10:41:11,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420134165] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:11,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:11,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:11,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742470719] [2022-09-16 10:41:11,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:11,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:11,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:11,236 INFO L87 Difference]: Start difference. First operand 13276 states and 28147 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:12,792 INFO L93 Difference]: Finished difference Result 26102 states and 55266 transitions. [2022-09-16 10:41:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:12,841 INFO L225 Difference]: With dead ends: 26102 [2022-09-16 10:41:12,841 INFO L226 Difference]: Without dead ends: 26102 [2022-09-16 10:41:12,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=466, Invalid=1094, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:12,842 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 1713 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:12,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 3987 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26102 states. [2022-09-16 10:41:13,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26102 to 13279. [2022-09-16 10:41:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13279 states, 13193 states have (on average 2.133934662320928) internal successors, (28153), 13278 states have internal predecessors, (28153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13279 states to 13279 states and 28153 transitions. [2022-09-16 10:41:13,102 INFO L78 Accepts]: Start accepts. Automaton has 13279 states and 28153 transitions. Word has length 71 [2022-09-16 10:41:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:13,102 INFO L495 AbstractCegarLoop]: Abstraction has 13279 states and 28153 transitions. [2022-09-16 10:41:13,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 13279 states and 28153 transitions. [2022-09-16 10:41:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:13,104 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:13,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:13,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-09-16 10:41:13,104 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1377126412, now seen corresponding path program 79 times [2022-09-16 10:41:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:13,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851790053] [2022-09-16 10:41:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:13,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:13,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:13,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851790053] [2022-09-16 10:41:13,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851790053] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:13,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:13,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:13,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033540594] [2022-09-16 10:41:13,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:13,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:13,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:13,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:13,289 INFO L87 Difference]: Start difference. First operand 13279 states and 28153 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:14,325 INFO L93 Difference]: Finished difference Result 20260 states and 42969 transitions. [2022-09-16 10:41:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:41:14,326 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:14,360 INFO L225 Difference]: With dead ends: 20260 [2022-09-16 10:41:14,360 INFO L226 Difference]: Without dead ends: 20260 [2022-09-16 10:41:14,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:41:14,361 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1510 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:14,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 3376 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20260 states. [2022-09-16 10:41:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20260 to 13303. [2022-09-16 10:41:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13217 states have (on average 2.1336914579707953) internal successors, (28201), 13302 states have internal predecessors, (28201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 28201 transitions. [2022-09-16 10:41:14,596 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 28201 transitions. Word has length 71 [2022-09-16 10:41:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:14,597 INFO L495 AbstractCegarLoop]: Abstraction has 13303 states and 28201 transitions. [2022-09-16 10:41:14,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 28201 transitions. [2022-09-16 10:41:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:14,599 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:14,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:14,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-09-16 10:41:14,599 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -424794068, now seen corresponding path program 80 times [2022-09-16 10:41:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:14,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313593418] [2022-09-16 10:41:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:14,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:14,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313593418] [2022-09-16 10:41:14,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313593418] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:14,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:14,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:14,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977484341] [2022-09-16 10:41:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:14,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:14,814 INFO L87 Difference]: Start difference. First operand 13303 states and 28201 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:16,657 INFO L93 Difference]: Finished difference Result 24007 states and 50984 transitions. [2022-09-16 10:41:16,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:41:16,657 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:16,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:16,697 INFO L225 Difference]: With dead ends: 24007 [2022-09-16 10:41:16,697 INFO L226 Difference]: Without dead ends: 24007 [2022-09-16 10:41:16,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:41:16,697 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 1627 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:16,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 4191 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:41:16,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24007 states. [2022-09-16 10:41:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24007 to 13297. [2022-09-16 10:41:16,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13297 states, 13211 states have (on average 2.133752176216789) internal successors, (28189), 13296 states have internal predecessors, (28189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13297 states to 13297 states and 28189 transitions. [2022-09-16 10:41:16,932 INFO L78 Accepts]: Start accepts. Automaton has 13297 states and 28189 transitions. Word has length 71 [2022-09-16 10:41:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:16,933 INFO L495 AbstractCegarLoop]: Abstraction has 13297 states and 28189 transitions. [2022-09-16 10:41:16,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 13297 states and 28189 transitions. [2022-09-16 10:41:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:16,935 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:16,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:16,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-09-16 10:41:16,935 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash -449605208, now seen corresponding path program 81 times [2022-09-16 10:41:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:16,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090450491] [2022-09-16 10:41:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:16,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:17,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:17,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090450491] [2022-09-16 10:41:17,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090450491] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:17,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:17,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:17,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825891754] [2022-09-16 10:41:17,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:17,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:17,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:17,155 INFO L87 Difference]: Start difference. First operand 13297 states and 28189 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:18,429 INFO L93 Difference]: Finished difference Result 24902 states and 52771 transitions. [2022-09-16 10:41:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:18,470 INFO L225 Difference]: With dead ends: 24902 [2022-09-16 10:41:18,470 INFO L226 Difference]: Without dead ends: 24902 [2022-09-16 10:41:18,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:18,471 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1719 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:18,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 3469 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:18,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24902 states. [2022-09-16 10:41:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24902 to 13270. [2022-09-16 10:41:18,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13184 states have (on average 2.1340260922330097) internal successors, (28135), 13269 states have internal predecessors, (28135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 28135 transitions. [2022-09-16 10:41:18,708 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 28135 transitions. Word has length 71 [2022-09-16 10:41:18,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:18,709 INFO L495 AbstractCegarLoop]: Abstraction has 13270 states and 28135 transitions. [2022-09-16 10:41:18,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 28135 transitions. [2022-09-16 10:41:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:18,716 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:18,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:18,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-09-16 10:41:18,718 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash -920259892, now seen corresponding path program 82 times [2022-09-16 10:41:18,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:18,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941787351] [2022-09-16 10:41:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:18,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941787351] [2022-09-16 10:41:18,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941787351] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:18,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:18,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248807180] [2022-09-16 10:41:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:18,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:18,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:18,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:18,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:18,938 INFO L87 Difference]: Start difference. First operand 13270 states and 28135 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:19,953 INFO L93 Difference]: Finished difference Result 18981 states and 40137 transitions. [2022-09-16 10:41:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:41:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:19,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:19,982 INFO L225 Difference]: With dead ends: 18981 [2022-09-16 10:41:19,982 INFO L226 Difference]: Without dead ends: 18981 [2022-09-16 10:41:19,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:41:19,983 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1730 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:19,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 2871 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:41:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18981 states. [2022-09-16 10:41:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18981 to 13324. [2022-09-16 10:41:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13324 states, 13238 states have (on average 2.1334793775494787) internal successors, (28243), 13323 states have internal predecessors, (28243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13324 states to 13324 states and 28243 transitions. [2022-09-16 10:41:20,197 INFO L78 Accepts]: Start accepts. Automaton has 13324 states and 28243 transitions. Word has length 71 [2022-09-16 10:41:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:20,197 INFO L495 AbstractCegarLoop]: Abstraction has 13324 states and 28243 transitions. [2022-09-16 10:41:20,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 13324 states and 28243 transitions. [2022-09-16 10:41:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:20,199 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:20,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:20,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-09-16 10:41:20,199 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:20,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1116621400, now seen corresponding path program 83 times [2022-09-16 10:41:20,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:20,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791289843] [2022-09-16 10:41:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:20,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791289843] [2022-09-16 10:41:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791289843] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:20,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:20,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:20,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122214321] [2022-09-16 10:41:20,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:20,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:20,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:20,413 INFO L87 Difference]: Start difference. First operand 13324 states and 28243 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:21,754 INFO L93 Difference]: Finished difference Result 20125 states and 42702 transitions. [2022-09-16 10:41:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:41:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:21,785 INFO L225 Difference]: With dead ends: 20125 [2022-09-16 10:41:21,785 INFO L226 Difference]: Without dead ends: 20125 [2022-09-16 10:41:21,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:41:21,786 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1650 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:21,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3314 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20125 states. [2022-09-16 10:41:21,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20125 to 13330. [2022-09-16 10:41:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13244 states have (on average 2.1334189066747204) internal successors, (28255), 13329 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 28255 transitions. [2022-09-16 10:41:22,014 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 28255 transitions. Word has length 71 [2022-09-16 10:41:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:22,014 INFO L495 AbstractCegarLoop]: Abstraction has 13330 states and 28255 transitions. [2022-09-16 10:41:22,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 28255 transitions. [2022-09-16 10:41:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:22,016 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:22,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:22,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-09-16 10:41:22,016 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1640989652, now seen corresponding path program 84 times [2022-09-16 10:41:22,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:22,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378810479] [2022-09-16 10:41:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:22,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:22,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:22,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378810479] [2022-09-16 10:41:22,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378810479] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:22,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:22,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680301560] [2022-09-16 10:41:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:22,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:22,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:22,249 INFO L87 Difference]: Start difference. First operand 13330 states and 28255 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:23,769 INFO L93 Difference]: Finished difference Result 22734 states and 48164 transitions. [2022-09-16 10:41:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:41:23,769 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:23,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:23,808 INFO L225 Difference]: With dead ends: 22734 [2022-09-16 10:41:23,808 INFO L226 Difference]: Without dead ends: 22734 [2022-09-16 10:41:23,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:41:23,809 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1990 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:23,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 3407 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22734 states. [2022-09-16 10:41:24,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22734 to 13312. [2022-09-16 10:41:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13312 states, 13226 states have (on average 2.1336004838953575) internal successors, (28219), 13311 states have internal predecessors, (28219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13312 states to 13312 states and 28219 transitions. [2022-09-16 10:41:24,054 INFO L78 Accepts]: Start accepts. Automaton has 13312 states and 28219 transitions. Word has length 71 [2022-09-16 10:41:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:24,054 INFO L495 AbstractCegarLoop]: Abstraction has 13312 states and 28219 transitions. [2022-09-16 10:41:24,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 13312 states and 28219 transitions. [2022-09-16 10:41:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:24,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:24,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-09-16 10:41:24,057 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:24,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2052817384, now seen corresponding path program 85 times [2022-09-16 10:41:24,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:24,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809825707] [2022-09-16 10:41:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:24,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:24,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809825707] [2022-09-16 10:41:24,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809825707] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:24,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:24,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190023830] [2022-09-16 10:41:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:24,287 INFO L87 Difference]: Start difference. First operand 13312 states and 28219 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:25,860 INFO L93 Difference]: Finished difference Result 19068 states and 40320 transitions. [2022-09-16 10:41:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:41:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:25,891 INFO L225 Difference]: With dead ends: 19068 [2022-09-16 10:41:25,891 INFO L226 Difference]: Without dead ends: 19068 [2022-09-16 10:41:25,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:41:25,891 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1626 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:25,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 3647 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:41:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2022-09-16 10:41:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 13336. [2022-09-16 10:41:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 13250 states have (on average 2.133358490566038) internal successors, (28267), 13335 states have internal predecessors, (28267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 28267 transitions. [2022-09-16 10:41:26,112 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 28267 transitions. Word has length 71 [2022-09-16 10:41:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:26,112 INFO L495 AbstractCegarLoop]: Abstraction has 13336 states and 28267 transitions. [2022-09-16 10:41:26,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 28267 transitions. [2022-09-16 10:41:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:26,116 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:26,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:26,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-09-16 10:41:26,116 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1528449132, now seen corresponding path program 86 times [2022-09-16 10:41:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:26,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848230022] [2022-09-16 10:41:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848230022] [2022-09-16 10:41:26,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848230022] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:26,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:26,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777567125] [2022-09-16 10:41:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:26,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:26,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:26,398 INFO L87 Difference]: Start difference. First operand 13336 states and 28267 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:28,277 INFO L93 Difference]: Finished difference Result 22815 states and 48335 transitions. [2022-09-16 10:41:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:41:28,278 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:28,314 INFO L225 Difference]: With dead ends: 22815 [2022-09-16 10:41:28,314 INFO L226 Difference]: Without dead ends: 22815 [2022-09-16 10:41:28,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:41:28,314 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 1739 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:28,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 3698 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22815 states. [2022-09-16 10:41:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22815 to 13330. [2022-09-16 10:41:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13244 states have (on average 2.1334189066747204) internal successors, (28255), 13329 states have internal predecessors, (28255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 28255 transitions. [2022-09-16 10:41:28,540 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 28255 transitions. Word has length 71 [2022-09-16 10:41:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:28,540 INFO L495 AbstractCegarLoop]: Abstraction has 13330 states and 28255 transitions. [2022-09-16 10:41:28,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 28255 transitions. [2022-09-16 10:41:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:28,542 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:28,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:28,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-09-16 10:41:28,542 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1858529552, now seen corresponding path program 87 times [2022-09-16 10:41:28,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:28,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643159763] [2022-09-16 10:41:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:28,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:28,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:28,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643159763] [2022-09-16 10:41:28,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643159763] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:28,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:28,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:28,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101975286] [2022-09-16 10:41:28,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:28,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:28,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:28,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:28,777 INFO L87 Difference]: Start difference. First operand 13330 states and 28255 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:30,241 INFO L93 Difference]: Finished difference Result 24901 states and 52833 transitions. [2022-09-16 10:41:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:30,241 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:30,281 INFO L225 Difference]: With dead ends: 24901 [2022-09-16 10:41:30,282 INFO L226 Difference]: Without dead ends: 24901 [2022-09-16 10:41:30,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:30,282 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1840 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:30,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 3568 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24901 states. [2022-09-16 10:41:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24901 to 13276. [2022-09-16 10:41:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13276 states, 13190 states have (on average 2.1339651250947687) internal successors, (28147), 13275 states have internal predecessors, (28147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13276 states to 13276 states and 28147 transitions. [2022-09-16 10:41:30,518 INFO L78 Accepts]: Start accepts. Automaton has 13276 states and 28147 transitions. Word has length 71 [2022-09-16 10:41:30,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:30,519 INFO L495 AbstractCegarLoop]: Abstraction has 13276 states and 28147 transitions. [2022-09-16 10:41:30,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 13276 states and 28147 transitions. [2022-09-16 10:41:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:30,521 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:30,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:30,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-09-16 10:41:30,521 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:30,521 INFO L85 PathProgramCache]: Analyzing trace with hash -723481490, now seen corresponding path program 88 times [2022-09-16 10:41:30,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:30,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010770146] [2022-09-16 10:41:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:30,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010770146] [2022-09-16 10:41:30,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010770146] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:30,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:30,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514123198] [2022-09-16 10:41:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:30,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:30,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:30,747 INFO L87 Difference]: Start difference. First operand 13276 states and 28147 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:31,879 INFO L93 Difference]: Finished difference Result 19390 states and 41199 transitions. [2022-09-16 10:41:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:31,880 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:31,910 INFO L225 Difference]: With dead ends: 19390 [2022-09-16 10:41:31,910 INFO L226 Difference]: Without dead ends: 19390 [2022-09-16 10:41:31,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=464, Invalid=1096, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:31,911 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1560 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:31,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 3179 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:41:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19390 states. [2022-09-16 10:41:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19390 to 13278. [2022-09-16 10:41:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13278 states, 13192 states have (on average 2.133944815039418) internal successors, (28151), 13277 states have internal predecessors, (28151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13278 states to 13278 states and 28151 transitions. [2022-09-16 10:41:32,119 INFO L78 Accepts]: Start accepts. Automaton has 13278 states and 28151 transitions. Word has length 71 [2022-09-16 10:41:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 13278 states and 28151 transitions. [2022-09-16 10:41:32,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 13278 states and 28151 transitions. [2022-09-16 10:41:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:32,121 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:32,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:32,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-09-16 10:41:32,121 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:32,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1762249774, now seen corresponding path program 89 times [2022-09-16 10:41:32,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:32,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074974386] [2022-09-16 10:41:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:32,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:32,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:32,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074974386] [2022-09-16 10:41:32,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074974386] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:32,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:32,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:32,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700636811] [2022-09-16 10:41:32,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:32,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:32,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:32,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:32,391 INFO L87 Difference]: Start difference. First operand 13278 states and 28151 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:34,265 INFO L93 Difference]: Finished difference Result 19642 states and 41715 transitions. [2022-09-16 10:41:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:41:34,265 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:34,296 INFO L225 Difference]: With dead ends: 19642 [2022-09-16 10:41:34,296 INFO L226 Difference]: Without dead ends: 19642 [2022-09-16 10:41:34,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:41:34,296 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1606 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:34,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 3676 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:34,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19642 states. [2022-09-16 10:41:34,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19642 to 13290. [2022-09-16 10:41:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13290 states, 13204 states have (on average 2.1338230839139656) internal successors, (28175), 13289 states have internal predecessors, (28175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13290 states to 13290 states and 28175 transitions. [2022-09-16 10:41:34,502 INFO L78 Accepts]: Start accepts. Automaton has 13290 states and 28175 transitions. Word has length 71 [2022-09-16 10:41:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:34,502 INFO L495 AbstractCegarLoop]: Abstraction has 13290 states and 28175 transitions. [2022-09-16 10:41:34,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13290 states and 28175 transitions. [2022-09-16 10:41:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:34,504 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:34,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:34,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-09-16 10:41:34,505 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:34,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 274631518, now seen corresponding path program 90 times [2022-09-16 10:41:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:34,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455574943] [2022-09-16 10:41:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:34,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:34,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455574943] [2022-09-16 10:41:34,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455574943] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:34,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:34,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959354598] [2022-09-16 10:41:34,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:34,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:34,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:34,773 INFO L87 Difference]: Start difference. First operand 13290 states and 28175 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:36,363 INFO L93 Difference]: Finished difference Result 19507 states and 41436 transitions. [2022-09-16 10:41:36,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:41:36,364 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:36,397 INFO L225 Difference]: With dead ends: 19507 [2022-09-16 10:41:36,397 INFO L226 Difference]: Without dead ends: 19507 [2022-09-16 10:41:36,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:41:36,398 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1549 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:36,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 3303 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19507 states. [2022-09-16 10:41:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19507 to 13296. [2022-09-16 10:41:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13296 states, 13210 states have (on average 2.133762301286904) internal successors, (28187), 13295 states have internal predecessors, (28187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13296 states to 13296 states and 28187 transitions. [2022-09-16 10:41:36,666 INFO L78 Accepts]: Start accepts. Automaton has 13296 states and 28187 transitions. Word has length 71 [2022-09-16 10:41:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:36,666 INFO L495 AbstractCegarLoop]: Abstraction has 13296 states and 28187 transitions. [2022-09-16 10:41:36,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 13296 states and 28187 transitions. [2022-09-16 10:41:36,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:36,668 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:36,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:36,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-09-16 10:41:36,668 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:36,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:36,669 INFO L85 PathProgramCache]: Analyzing trace with hash 798999770, now seen corresponding path program 91 times [2022-09-16 10:41:36,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:36,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197491316] [2022-09-16 10:41:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:36,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:36,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:36,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197491316] [2022-09-16 10:41:36,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197491316] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:36,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:36,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509173146] [2022-09-16 10:41:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:36,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:36,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:36,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:36,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:36,936 INFO L87 Difference]: Start difference. First operand 13296 states and 28187 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:39,149 INFO L93 Difference]: Finished difference Result 22062 states and 46806 transitions. [2022-09-16 10:41:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:41:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:39,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:39,187 INFO L225 Difference]: With dead ends: 22062 [2022-09-16 10:41:39,187 INFO L226 Difference]: Without dead ends: 22062 [2022-09-16 10:41:39,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=630, Invalid=1350, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:41:39,188 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1755 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:39,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 3493 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22062 states. [2022-09-16 10:41:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22062 to 13266. [2022-09-16 10:41:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13266 states, 13180 states have (on average 2.1340667678300456) internal successors, (28127), 13265 states have internal predecessors, (28127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13266 states to 13266 states and 28127 transitions. [2022-09-16 10:41:39,419 INFO L78 Accepts]: Start accepts. Automaton has 13266 states and 28127 transitions. Word has length 71 [2022-09-16 10:41:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:39,419 INFO L495 AbstractCegarLoop]: Abstraction has 13266 states and 28127 transitions. [2022-09-16 10:41:39,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13266 states and 28127 transitions. [2022-09-16 10:41:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:39,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:39,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:39,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-09-16 10:41:39,421 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:39,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:39,421 INFO L85 PathProgramCache]: Analyzing trace with hash -849207508, now seen corresponding path program 92 times [2022-09-16 10:41:39,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:39,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470526219] [2022-09-16 10:41:39,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:39,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:39,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:39,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470526219] [2022-09-16 10:41:39,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470526219] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:39,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:39,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584560163] [2022-09-16 10:41:39,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:39,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:39,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:39,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:39,694 INFO L87 Difference]: Start difference. First operand 13266 states and 28127 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:41,293 INFO L93 Difference]: Finished difference Result 18081 states and 38300 transitions. [2022-09-16 10:41:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:41:41,293 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:41,323 INFO L225 Difference]: With dead ends: 18081 [2022-09-16 10:41:41,323 INFO L226 Difference]: Without dead ends: 18081 [2022-09-16 10:41:41,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:41:41,323 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1540 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:41,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 3397 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-09-16 10:41:41,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 13314. [2022-09-16 10:41:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 13228 states have (on average 2.13358028424554) internal successors, (28223), 13313 states have internal predecessors, (28223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 28223 transitions. [2022-09-16 10:41:41,558 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 28223 transitions. Word has length 71 [2022-09-16 10:41:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:41,558 INFO L495 AbstractCegarLoop]: Abstraction has 13314 states and 28223 transitions. [2022-09-16 10:41:41,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 28223 transitions. [2022-09-16 10:41:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:41,561 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:41,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:41,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-09-16 10:41:41,561 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:41,561 INFO L85 PathProgramCache]: Analyzing trace with hash 899470816, now seen corresponding path program 93 times [2022-09-16 10:41:41,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:41,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82028744] [2022-09-16 10:41:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:41,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:41,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:41,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82028744] [2022-09-16 10:41:41,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82028744] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:41,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:41,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316802789] [2022-09-16 10:41:41,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:41,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:41,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:41,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:41,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:41,790 INFO L87 Difference]: Start difference. First operand 13314 states and 28223 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:43,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:43,096 INFO L93 Difference]: Finished difference Result 19225 states and 40865 transitions. [2022-09-16 10:41:43,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:41:43,097 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:43,128 INFO L225 Difference]: With dead ends: 19225 [2022-09-16 10:41:43,128 INFO L226 Difference]: Without dead ends: 19225 [2022-09-16 10:41:43,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:41:43,129 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1633 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:43,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 3028 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19225 states. [2022-09-16 10:41:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19225 to 13320. [2022-09-16 10:41:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13320 states, 13234 states have (on average 2.133519721928366) internal successors, (28235), 13319 states have internal predecessors, (28235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13320 states to 13320 states and 28235 transitions. [2022-09-16 10:41:43,349 INFO L78 Accepts]: Start accepts. Automaton has 13320 states and 28235 transitions. Word has length 71 [2022-09-16 10:41:43,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:43,349 INFO L495 AbstractCegarLoop]: Abstraction has 13320 states and 28235 transitions. [2022-09-16 10:41:43,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 13320 states and 28235 transitions. [2022-09-16 10:41:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:43,351 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:43,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:43,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-09-16 10:41:43,352 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1423839068, now seen corresponding path program 94 times [2022-09-16 10:41:43,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:43,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612514382] [2022-09-16 10:41:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:43,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612514382] [2022-09-16 10:41:43,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612514382] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:43,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:43,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:43,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085120872] [2022-09-16 10:41:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:43,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:43,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:43,588 INFO L87 Difference]: Start difference. First operand 13320 states and 28235 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:45,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:45,593 INFO L93 Difference]: Finished difference Result 21834 states and 46327 transitions. [2022-09-16 10:41:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:41:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:45,632 INFO L225 Difference]: With dead ends: 21834 [2022-09-16 10:41:45,632 INFO L226 Difference]: Without dead ends: 21834 [2022-09-16 10:41:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:41:45,632 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1566 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:45,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 3634 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:41:45,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21834 states. [2022-09-16 10:41:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21834 to 13302. [2022-09-16 10:41:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13302 states, 13216 states have (on average 2.133701573849879) internal successors, (28199), 13301 states have internal predecessors, (28199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13302 states to 13302 states and 28199 transitions. [2022-09-16 10:41:45,872 INFO L78 Accepts]: Start accepts. Automaton has 13302 states and 28199 transitions. Word has length 71 [2022-09-16 10:41:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:45,872 INFO L495 AbstractCegarLoop]: Abstraction has 13302 states and 28199 transitions. [2022-09-16 10:41:45,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 13302 states and 28199 transitions. [2022-09-16 10:41:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:45,874 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:45,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:45,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-09-16 10:41:45,875 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1337131172, now seen corresponding path program 95 times [2022-09-16 10:41:45,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:45,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480658742] [2022-09-16 10:41:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:46,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:46,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480658742] [2022-09-16 10:41:46,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480658742] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:46,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:46,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219773037] [2022-09-16 10:41:46,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:46,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:46,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:46,142 INFO L87 Difference]: Start difference. First operand 13302 states and 28199 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:47,242 INFO L93 Difference]: Finished difference Result 18516 states and 39191 transitions. [2022-09-16 10:41:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:41:47,242 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:47,272 INFO L225 Difference]: With dead ends: 18516 [2022-09-16 10:41:47,273 INFO L226 Difference]: Without dead ends: 18516 [2022-09-16 10:41:47,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:41:47,273 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1562 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:47,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 2802 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:41:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18516 states. [2022-09-16 10:41:47,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18516 to 13326. [2022-09-16 10:41:47,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13326 states, 13240 states have (on average 2.1334592145015105) internal successors, (28247), 13325 states have internal predecessors, (28247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13326 states to 13326 states and 28247 transitions. [2022-09-16 10:41:47,496 INFO L78 Accepts]: Start accepts. Automaton has 13326 states and 28247 transitions. Word has length 71 [2022-09-16 10:41:47,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:47,497 INFO L495 AbstractCegarLoop]: Abstraction has 13326 states and 28247 transitions. [2022-09-16 10:41:47,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13326 states and 28247 transitions. [2022-09-16 10:41:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:47,499 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:47,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:47,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-09-16 10:41:47,499 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1861499424, now seen corresponding path program 96 times [2022-09-16 10:41:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:47,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148024480] [2022-09-16 10:41:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:47,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:47,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:47,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148024480] [2022-09-16 10:41:47,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148024480] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:47,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:47,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542244188] [2022-09-16 10:41:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:47,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:47,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:47,761 INFO L87 Difference]: Start difference. First operand 13326 states and 28247 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:49,453 INFO L93 Difference]: Finished difference Result 22263 states and 47206 transitions. [2022-09-16 10:41:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:41:49,454 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:49,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:49,488 INFO L225 Difference]: With dead ends: 22263 [2022-09-16 10:41:49,488 INFO L226 Difference]: Without dead ends: 22263 [2022-09-16 10:41:49,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:41:49,488 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1707 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:49,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 3314 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:49,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22263 states. [2022-09-16 10:41:49,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22263 to 13320. [2022-09-16 10:41:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13320 states, 13234 states have (on average 2.133519721928366) internal successors, (28235), 13319 states have internal predecessors, (28235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13320 states to 13320 states and 28235 transitions. [2022-09-16 10:41:49,722 INFO L78 Accepts]: Start accepts. Automaton has 13320 states and 28235 transitions. Word has length 71 [2022-09-16 10:41:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:49,722 INFO L495 AbstractCegarLoop]: Abstraction has 13320 states and 28235 transitions. [2022-09-16 10:41:49,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 13320 states and 28235 transitions. [2022-09-16 10:41:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:49,724 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:49,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:49,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-09-16 10:41:49,724 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:49,725 INFO L85 PathProgramCache]: Analyzing trace with hash 953510812, now seen corresponding path program 97 times [2022-09-16 10:41:49,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:49,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777416364] [2022-09-16 10:41:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:49,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:49,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:49,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777416364] [2022-09-16 10:41:49,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777416364] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:49,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:49,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129216490] [2022-09-16 10:41:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:49,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:49,903 INFO L87 Difference]: Start difference. First operand 13320 states and 28235 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:51,523 INFO L93 Difference]: Finished difference Result 23723 states and 50367 transitions. [2022-09-16 10:41:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:51,523 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:51,561 INFO L225 Difference]: With dead ends: 23723 [2022-09-16 10:41:51,562 INFO L226 Difference]: Without dead ends: 23723 [2022-09-16 10:41:51,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:51,562 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 1707 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:51,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 3506 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23723 states. [2022-09-16 10:41:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23723 to 13266. [2022-09-16 10:41:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13266 states, 13180 states have (on average 2.1340667678300456) internal successors, (28127), 13265 states have internal predecessors, (28127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13266 states to 13266 states and 28127 transitions. [2022-09-16 10:41:51,803 INFO L78 Accepts]: Start accepts. Automaton has 13266 states and 28127 transitions. Word has length 71 [2022-09-16 10:41:51,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:51,804 INFO L495 AbstractCegarLoop]: Abstraction has 13266 states and 28127 transitions. [2022-09-16 10:41:51,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 13266 states and 28127 transitions. [2022-09-16 10:41:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:51,806 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:51,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:51,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-09-16 10:41:51,806 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:51,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:51,806 INFO L85 PathProgramCache]: Analyzing trace with hash 75874204, now seen corresponding path program 98 times [2022-09-16 10:41:51,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:51,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905075903] [2022-09-16 10:41:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:51,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:52,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:52,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905075903] [2022-09-16 10:41:52,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905075903] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:52,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:52,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396212481] [2022-09-16 10:41:52,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:52,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:52,087 INFO L87 Difference]: Start difference. First operand 13266 states and 28127 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:53,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:53,906 INFO L93 Difference]: Finished difference Result 24385 states and 51679 transitions. [2022-09-16 10:41:53,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:53,906 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:53,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:53,946 INFO L225 Difference]: With dead ends: 24385 [2022-09-16 10:41:53,946 INFO L226 Difference]: Without dead ends: 24385 [2022-09-16 10:41:53,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=466, Invalid=1094, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:53,947 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 1693 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:53,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 3613 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24385 states. [2022-09-16 10:41:54,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24385 to 13244. [2022-09-16 10:41:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13244 states, 13158 states have (on average 2.1342149262805896) internal successors, (28082), 13243 states have internal predecessors, (28082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13244 states to 13244 states and 28082 transitions. [2022-09-16 10:41:54,187 INFO L78 Accepts]: Start accepts. Automaton has 13244 states and 28082 transitions. Word has length 71 [2022-09-16 10:41:54,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:54,187 INFO L495 AbstractCegarLoop]: Abstraction has 13244 states and 28082 transitions. [2022-09-16 10:41:54,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:54,188 INFO L276 IsEmpty]: Start isEmpty. Operand 13244 states and 28082 transitions. [2022-09-16 10:41:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:54,189 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:54,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:54,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-09-16 10:41:54,190 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1875929866, now seen corresponding path program 99 times [2022-09-16 10:41:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:54,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553382141] [2022-09-16 10:41:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:54,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553382141] [2022-09-16 10:41:54,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553382141] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:54,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:54,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:54,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817959358] [2022-09-16 10:41:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:54,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:54,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:54,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:54,458 INFO L87 Difference]: Start difference. First operand 13244 states and 28082 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:55,575 INFO L93 Difference]: Finished difference Result 19221 states and 40853 transitions. [2022-09-16 10:41:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:41:55,576 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:55,604 INFO L225 Difference]: With dead ends: 19221 [2022-09-16 10:41:55,605 INFO L226 Difference]: Without dead ends: 19221 [2022-09-16 10:41:55,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:41:55,605 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1510 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:55,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 3221 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:41:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2022-09-16 10:41:55,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 13268. [2022-09-16 10:41:55,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 13182 states have (on average 2.1339705659232284) internal successors, (28130), 13267 states have internal predecessors, (28130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 28130 transitions. [2022-09-16 10:41:55,814 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 28130 transitions. Word has length 71 [2022-09-16 10:41:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:55,814 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 28130 transitions. [2022-09-16 10:41:55,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 28130 transitions. [2022-09-16 10:41:55,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:55,816 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:55,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:55,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-09-16 10:41:55,817 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:55,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:55,817 INFO L85 PathProgramCache]: Analyzing trace with hash -923597522, now seen corresponding path program 100 times [2022-09-16 10:41:55,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:55,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728607391] [2022-09-16 10:41:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:55,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:55,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:55,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728607391] [2022-09-16 10:41:55,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728607391] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:55,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:55,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:55,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084127319] [2022-09-16 10:41:55,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:55,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:55,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:55,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:55,990 INFO L87 Difference]: Start difference. First operand 13268 states and 28130 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:57,618 INFO L93 Difference]: Finished difference Result 22968 states and 48868 transitions. [2022-09-16 10:41:57,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:41:57,618 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:57,656 INFO L225 Difference]: With dead ends: 22968 [2022-09-16 10:41:57,657 INFO L226 Difference]: Without dead ends: 22968 [2022-09-16 10:41:57,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:41:57,657 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 1724 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:57,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 3671 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:41:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22968 states. [2022-09-16 10:41:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22968 to 13262. [2022-09-16 10:41:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13262 states, 13176 states have (on average 2.1340315725561627) internal successors, (28118), 13261 states have internal predecessors, (28118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13262 states to 13262 states and 28118 transitions. [2022-09-16 10:41:57,888 INFO L78 Accepts]: Start accepts. Automaton has 13262 states and 28118 transitions. Word has length 71 [2022-09-16 10:41:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:57,888 INFO L495 AbstractCegarLoop]: Abstraction has 13262 states and 28118 transitions. [2022-09-16 10:41:57,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13262 states and 28118 transitions. [2022-09-16 10:41:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:57,890 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:57,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:57,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-09-16 10:41:57,890 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:57,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:57,891 INFO L85 PathProgramCache]: Analyzing trace with hash -948408662, now seen corresponding path program 101 times [2022-09-16 10:41:57,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:57,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794130120] [2022-09-16 10:41:57,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:57,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:58,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:58,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794130120] [2022-09-16 10:41:58,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794130120] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:58,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:58,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490830751] [2022-09-16 10:41:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:58,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:58,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:58,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:58,104 INFO L87 Difference]: Start difference. First operand 13262 states and 28118 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:59,280 INFO L93 Difference]: Finished difference Result 23863 states and 50655 transitions. [2022-09-16 10:41:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:41:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:41:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:59,319 INFO L225 Difference]: With dead ends: 23863 [2022-09-16 10:41:59,319 INFO L226 Difference]: Without dead ends: 23863 [2022-09-16 10:41:59,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:41:59,319 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1817 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:59,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 3031 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:41:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23863 states. [2022-09-16 10:41:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23863 to 13235. [2022-09-16 10:41:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13235 states, 13149 states have (on average 2.1343067913909803) internal successors, (28064), 13234 states have internal predecessors, (28064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:59,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13235 states to 13235 states and 28064 transitions. [2022-09-16 10:41:59,574 INFO L78 Accepts]: Start accepts. Automaton has 13235 states and 28064 transitions. Word has length 71 [2022-09-16 10:41:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:59,574 INFO L495 AbstractCegarLoop]: Abstraction has 13235 states and 28064 transitions. [2022-09-16 10:41:59,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 13235 states and 28064 transitions. [2022-09-16 10:41:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:41:59,576 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:59,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:59,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-09-16 10:41:59,577 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1419063346, now seen corresponding path program 102 times [2022-09-16 10:41:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:59,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140873594] [2022-09-16 10:41:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:59,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:59,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140873594] [2022-09-16 10:41:59,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140873594] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:59,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:59,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:41:59,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954925418] [2022-09-16 10:41:59,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:59,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:41:59,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:41:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:41:59,853 INFO L87 Difference]: Start difference. First operand 13235 states and 28064 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:01,397 INFO L93 Difference]: Finished difference Result 18883 states and 39940 transitions. [2022-09-16 10:42:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:42:01,397 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:01,427 INFO L225 Difference]: With dead ends: 18883 [2022-09-16 10:42:01,427 INFO L226 Difference]: Without dead ends: 18883 [2022-09-16 10:42:01,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:42:01,427 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1673 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:01,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 3071 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:42:01,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18883 states. [2022-09-16 10:42:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18883 to 13289. [2022-09-16 10:42:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13289 states, 13203 states have (on average 2.133757479360751) internal successors, (28172), 13288 states have internal predecessors, (28172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13289 states to 13289 states and 28172 transitions. [2022-09-16 10:42:01,636 INFO L78 Accepts]: Start accepts. Automaton has 13289 states and 28172 transitions. Word has length 71 [2022-09-16 10:42:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:01,636 INFO L495 AbstractCegarLoop]: Abstraction has 13289 states and 28172 transitions. [2022-09-16 10:42:01,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 13289 states and 28172 transitions. [2022-09-16 10:42:01,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:01,638 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:01,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:01,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-09-16 10:42:01,638 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:01,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash 617817946, now seen corresponding path program 103 times [2022-09-16 10:42:01,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:01,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140870664] [2022-09-16 10:42:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:01,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:01,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140870664] [2022-09-16 10:42:01,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140870664] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:01,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:01,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:01,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066173360] [2022-09-16 10:42:01,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:01,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:01,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:01,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:01,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:01,906 INFO L87 Difference]: Start difference. First operand 13289 states and 28172 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:03,264 INFO L93 Difference]: Finished difference Result 20027 states and 42505 transitions. [2022-09-16 10:42:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:42:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:03,296 INFO L225 Difference]: With dead ends: 20027 [2022-09-16 10:42:03,296 INFO L226 Difference]: Without dead ends: 20027 [2022-09-16 10:42:03,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:42:03,297 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1596 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:03,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 3348 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:03,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20027 states. [2022-09-16 10:42:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20027 to 13295. [2022-09-16 10:42:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13295 states, 13209 states have (on average 2.133696721932016) internal successors, (28184), 13294 states have internal predecessors, (28184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13295 states to 13295 states and 28184 transitions. [2022-09-16 10:42:03,516 INFO L78 Accepts]: Start accepts. Automaton has 13295 states and 28184 transitions. Word has length 71 [2022-09-16 10:42:03,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:03,516 INFO L495 AbstractCegarLoop]: Abstraction has 13295 states and 28184 transitions. [2022-09-16 10:42:03,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 13295 states and 28184 transitions. [2022-09-16 10:42:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:03,518 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:03,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:03,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-09-16 10:42:03,519 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1142186198, now seen corresponding path program 104 times [2022-09-16 10:42:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524453401] [2022-09-16 10:42:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:03,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:03,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524453401] [2022-09-16 10:42:03,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524453401] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:03,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:03,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:03,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643792993] [2022-09-16 10:42:03,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:03,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:03,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:03,718 INFO L87 Difference]: Start difference. First operand 13295 states and 28184 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:05,128 INFO L93 Difference]: Finished difference Result 22636 states and 47967 transitions. [2022-09-16 10:42:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:42:05,129 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:05,168 INFO L225 Difference]: With dead ends: 22636 [2022-09-16 10:42:05,168 INFO L226 Difference]: Without dead ends: 22636 [2022-09-16 10:42:05,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:42:05,168 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1726 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:05,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 3392 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22636 states. [2022-09-16 10:42:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22636 to 13277. [2022-09-16 10:42:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13277 states, 13191 states have (on average 2.133879160033356) internal successors, (28148), 13276 states have internal predecessors, (28148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13277 states to 13277 states and 28148 transitions. [2022-09-16 10:42:05,405 INFO L78 Accepts]: Start accepts. Automaton has 13277 states and 28148 transitions. Word has length 71 [2022-09-16 10:42:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:05,405 INFO L495 AbstractCegarLoop]: Abstraction has 13277 states and 28148 transitions. [2022-09-16 10:42:05,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13277 states and 28148 transitions. [2022-09-16 10:42:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:05,407 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:05,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:05,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-09-16 10:42:05,408 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:05,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:05,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1743346458, now seen corresponding path program 105 times [2022-09-16 10:42:05,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:05,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60339752] [2022-09-16 10:42:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:05,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60339752] [2022-09-16 10:42:05,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60339752] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:05,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:05,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:05,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484565098] [2022-09-16 10:42:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:05,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:05,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:05,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:05,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:05,607 INFO L87 Difference]: Start difference. First operand 13277 states and 28148 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:06,726 INFO L93 Difference]: Finished difference Result 18970 states and 40123 transitions. [2022-09-16 10:42:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:42:06,727 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:06,758 INFO L225 Difference]: With dead ends: 18970 [2022-09-16 10:42:06,758 INFO L226 Difference]: Without dead ends: 18970 [2022-09-16 10:42:06,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:42:06,759 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1696 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:06,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 3073 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18970 states. [2022-09-16 10:42:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18970 to 13301. [2022-09-16 10:42:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13301 states, 13215 states have (on average 2.1336360196746122) internal successors, (28196), 13300 states have internal predecessors, (28196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13301 states to 13301 states and 28196 transitions. [2022-09-16 10:42:06,972 INFO L78 Accepts]: Start accepts. Automaton has 13301 states and 28196 transitions. Word has length 71 [2022-09-16 10:42:06,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:06,973 INFO L495 AbstractCegarLoop]: Abstraction has 13301 states and 28196 transitions. [2022-09-16 10:42:06,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13301 states and 28196 transitions. [2022-09-16 10:42:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:06,975 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:06,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:06,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-09-16 10:42:06,975 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:06,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:06,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2027252586, now seen corresponding path program 106 times [2022-09-16 10:42:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:06,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253615922] [2022-09-16 10:42:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:06,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:07,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:07,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253615922] [2022-09-16 10:42:07,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253615922] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:07,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:07,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945179518] [2022-09-16 10:42:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:07,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:07,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:07,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:07,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:07,288 INFO L87 Difference]: Start difference. First operand 13301 states and 28196 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:08,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:08,646 INFO L93 Difference]: Finished difference Result 22717 states and 48138 transitions. [2022-09-16 10:42:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:42:08,646 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:08,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:08,680 INFO L225 Difference]: With dead ends: 22717 [2022-09-16 10:42:08,680 INFO L226 Difference]: Without dead ends: 22717 [2022-09-16 10:42:08,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:42:08,681 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 1602 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:08,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 3888 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22717 states. [2022-09-16 10:42:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22717 to 13295. [2022-09-16 10:42:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13295 states, 13209 states have (on average 2.133696721932016) internal successors, (28184), 13294 states have internal predecessors, (28184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13295 states to 13295 states and 28184 transitions. [2022-09-16 10:42:08,898 INFO L78 Accepts]: Start accepts. Automaton has 13295 states and 28184 transitions. Word has length 71 [2022-09-16 10:42:08,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:08,899 INFO L495 AbstractCegarLoop]: Abstraction has 13295 states and 28184 transitions. [2022-09-16 10:42:08,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 13295 states and 28184 transitions. [2022-09-16 10:42:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:08,901 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:08,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:08,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-09-16 10:42:08,901 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:08,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:08,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1359726098, now seen corresponding path program 107 times [2022-09-16 10:42:08,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:08,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119096898] [2022-09-16 10:42:08,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:08,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:09,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:09,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119096898] [2022-09-16 10:42:09,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119096898] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:09,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:09,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:09,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240027218] [2022-09-16 10:42:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:09,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:09,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:09,076 INFO L87 Difference]: Start difference. First operand 13295 states and 28184 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:10,292 INFO L93 Difference]: Finished difference Result 24803 states and 52636 transitions. [2022-09-16 10:42:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:42:10,293 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:10,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:10,336 INFO L225 Difference]: With dead ends: 24803 [2022-09-16 10:42:10,336 INFO L226 Difference]: Without dead ends: 24803 [2022-09-16 10:42:10,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:42:10,336 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1569 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:10,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 3467 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24803 states. [2022-09-16 10:42:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24803 to 13241. [2022-09-16 10:42:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13241 states, 13155 states have (on average 2.134245534017484) internal successors, (28076), 13240 states have internal predecessors, (28076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13241 states to 13241 states and 28076 transitions. [2022-09-16 10:42:10,610 INFO L78 Accepts]: Start accepts. Automaton has 13241 states and 28076 transitions. Word has length 71 [2022-09-16 10:42:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:10,610 INFO L495 AbstractCegarLoop]: Abstraction has 13241 states and 28076 transitions. [2022-09-16 10:42:10,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 13241 states and 28076 transitions. [2022-09-16 10:42:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:10,612 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:10,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:10,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-09-16 10:42:10,613 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1222284944, now seen corresponding path program 108 times [2022-09-16 10:42:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:10,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595044964] [2022-09-16 10:42:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:10,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:10,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595044964] [2022-09-16 10:42:10,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595044964] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:10,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:10,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:10,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733377407] [2022-09-16 10:42:10,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:10,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:10,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:10,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:10,805 INFO L87 Difference]: Start difference. First operand 13241 states and 28076 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:11,899 INFO L93 Difference]: Finished difference Result 19292 states and 41002 transitions. [2022-09-16 10:42:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:42:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:11,930 INFO L225 Difference]: With dead ends: 19292 [2022-09-16 10:42:11,931 INFO L226 Difference]: Without dead ends: 19292 [2022-09-16 10:42:11,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=464, Invalid=1096, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:42:11,931 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1415 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:11,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 3349 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:42:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19292 states. [2022-09-16 10:42:12,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19292 to 13243. [2022-09-16 10:42:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13157 states have (on average 2.134225127308657) internal successors, (28080), 13242 states have internal predecessors, (28080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 28080 transitions. [2022-09-16 10:42:12,154 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 28080 transitions. Word has length 71 [2022-09-16 10:42:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:12,154 INFO L495 AbstractCegarLoop]: Abstraction has 13243 states and 28080 transitions. [2022-09-16 10:42:12,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 28080 transitions. [2022-09-16 10:42:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:12,156 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:12,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:12,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-09-16 10:42:12,156 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:12,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2033914068, now seen corresponding path program 109 times [2022-09-16 10:42:12,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:12,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075281336] [2022-09-16 10:42:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:12,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:12,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075281336] [2022-09-16 10:42:12,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075281336] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:12,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:12,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669037558] [2022-09-16 10:42:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:12,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:12,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:12,434 INFO L87 Difference]: Start difference. First operand 13243 states and 28080 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:13,978 INFO L93 Difference]: Finished difference Result 19544 states and 41518 transitions. [2022-09-16 10:42:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:42:13,978 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:14,011 INFO L225 Difference]: With dead ends: 19544 [2022-09-16 10:42:14,011 INFO L226 Difference]: Without dead ends: 19544 [2022-09-16 10:42:14,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:42:14,012 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 1816 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:14,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 3080 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19544 states. [2022-09-16 10:42:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19544 to 13255. [2022-09-16 10:42:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 13169 states have (on average 2.1341028172222645) internal successors, (28104), 13254 states have internal predecessors, (28104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 28104 transitions. [2022-09-16 10:42:14,259 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 28104 transitions. Word has length 71 [2022-09-16 10:42:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:14,259 INFO L495 AbstractCegarLoop]: Abstraction has 13255 states and 28104 transitions. [2022-09-16 10:42:14,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:14,259 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 28104 transitions. [2022-09-16 10:42:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:14,261 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:14,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:14,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-09-16 10:42:14,261 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:14,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash -224171936, now seen corresponding path program 110 times [2022-09-16 10:42:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:14,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688185606] [2022-09-16 10:42:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:14,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:14,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:14,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688185606] [2022-09-16 10:42:14,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688185606] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:14,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:14,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587726372] [2022-09-16 10:42:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:14,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:14,494 INFO L87 Difference]: Start difference. First operand 13255 states and 28104 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:15,880 INFO L93 Difference]: Finished difference Result 19409 states and 41239 transitions. [2022-09-16 10:42:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:42:15,880 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:15,911 INFO L225 Difference]: With dead ends: 19409 [2022-09-16 10:42:15,911 INFO L226 Difference]: Without dead ends: 19409 [2022-09-16 10:42:15,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:42:15,912 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1615 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:15,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 3404 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19409 states. [2022-09-16 10:42:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19409 to 13261. [2022-09-16 10:42:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13261 states, 13175 states have (on average 2.1340417457305505) internal successors, (28116), 13260 states have internal predecessors, (28116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13261 states to 13261 states and 28116 transitions. [2022-09-16 10:42:16,142 INFO L78 Accepts]: Start accepts. Automaton has 13261 states and 28116 transitions. Word has length 71 [2022-09-16 10:42:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:16,142 INFO L495 AbstractCegarLoop]: Abstraction has 13261 states and 28116 transitions. [2022-09-16 10:42:16,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 13261 states and 28116 transitions. [2022-09-16 10:42:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:16,144 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:16,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:16,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-09-16 10:42:16,144 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:16,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash 300196316, now seen corresponding path program 111 times [2022-09-16 10:42:16,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:16,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130337349] [2022-09-16 10:42:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:16,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:16,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130337349] [2022-09-16 10:42:16,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130337349] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:16,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:16,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:16,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982702874] [2022-09-16 10:42:16,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:16,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:16,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:16,328 INFO L87 Difference]: Start difference. First operand 13261 states and 28116 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:17,852 INFO L93 Difference]: Finished difference Result 21964 states and 46609 transitions. [2022-09-16 10:42:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:42:17,853 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:17,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:17,889 INFO L225 Difference]: With dead ends: 21964 [2022-09-16 10:42:17,889 INFO L226 Difference]: Without dead ends: 21964 [2022-09-16 10:42:17,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=630, Invalid=1350, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:42:17,889 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 1632 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:17,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 3938 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:17,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21964 states. [2022-09-16 10:42:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21964 to 13234. [2022-09-16 10:42:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13234 states, 13148 states have (on average 2.1343170063888044) internal successors, (28062), 13233 states have internal predecessors, (28062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13234 states to 13234 states and 28062 transitions. [2022-09-16 10:42:18,123 INFO L78 Accepts]: Start accepts. Automaton has 13234 states and 28062 transitions. Word has length 71 [2022-09-16 10:42:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:18,123 INFO L495 AbstractCegarLoop]: Abstraction has 13234 states and 28062 transitions. [2022-09-16 10:42:18,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:18,123 INFO L276 IsEmpty]: Start isEmpty. Operand 13234 states and 28062 transitions. [2022-09-16 10:42:18,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:18,125 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:18,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:18,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-09-16 10:42:18,126 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:18,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:18,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2089537732, now seen corresponding path program 112 times [2022-09-16 10:42:18,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:18,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902541242] [2022-09-16 10:42:18,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:18,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:18,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:18,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902541242] [2022-09-16 10:42:18,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902541242] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:18,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:18,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:18,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841821422] [2022-09-16 10:42:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:18,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:18,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:18,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:18,357 INFO L87 Difference]: Start difference. First operand 13234 states and 28062 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:19,579 INFO L93 Difference]: Finished difference Result 17941 states and 38019 transitions. [2022-09-16 10:42:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:42:19,580 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:19,611 INFO L225 Difference]: With dead ends: 17941 [2022-09-16 10:42:19,611 INFO L226 Difference]: Without dead ends: 17941 [2022-09-16 10:42:19,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:42:19,611 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1510 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:19,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2994 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17941 states. [2022-09-16 10:42:19,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17941 to 13246. [2022-09-16 10:42:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13246 states, 13160 states have (on average 2.13419452887538) internal successors, (28086), 13245 states have internal predecessors, (28086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13246 states to 13246 states and 28086 transitions. [2022-09-16 10:42:19,835 INFO L78 Accepts]: Start accepts. Automaton has 13246 states and 28086 transitions. Word has length 71 [2022-09-16 10:42:19,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:19,835 INFO L495 AbstractCegarLoop]: Abstraction has 13246 states and 28086 transitions. [2022-09-16 10:42:19,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:19,835 INFO L276 IsEmpty]: Start isEmpty. Operand 13246 states and 28086 transitions. [2022-09-16 10:42:19,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:19,837 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:19,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:19,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-09-16 10:42:19,838 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:19,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:19,838 INFO L85 PathProgramCache]: Analyzing trace with hash -168548272, now seen corresponding path program 113 times [2022-09-16 10:42:19,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:19,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917809191] [2022-09-16 10:42:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:20,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:20,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917809191] [2022-09-16 10:42:20,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917809191] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:20,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:20,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:20,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568208133] [2022-09-16 10:42:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:20,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:20,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:20,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:20,182 INFO L87 Difference]: Start difference. First operand 13246 states and 28086 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:22,003 INFO L93 Difference]: Finished difference Result 19085 states and 40584 transitions. [2022-09-16 10:42:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:42:22,003 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:22,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:22,034 INFO L225 Difference]: With dead ends: 19085 [2022-09-16 10:42:22,034 INFO L226 Difference]: Without dead ends: 19085 [2022-09-16 10:42:22,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=530, Invalid=1192, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:42:22,035 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1482 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:22,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 3586 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:42:22,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19085 states. [2022-09-16 10:42:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19085 to 13252. [2022-09-16 10:42:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13252 states, 13166 states have (on average 2.1341333738417134) internal successors, (28098), 13251 states have internal predecessors, (28098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13252 states to 13252 states and 28098 transitions. [2022-09-16 10:42:22,249 INFO L78 Accepts]: Start accepts. Automaton has 13252 states and 28098 transitions. Word has length 71 [2022-09-16 10:42:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:22,249 INFO L495 AbstractCegarLoop]: Abstraction has 13252 states and 28098 transitions. [2022-09-16 10:42:22,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 13252 states and 28098 transitions. [2022-09-16 10:42:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:22,251 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:22,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:22,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-09-16 10:42:22,251 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:22,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:22,251 INFO L85 PathProgramCache]: Analyzing trace with hash 355819980, now seen corresponding path program 114 times [2022-09-16 10:42:22,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:22,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18451033] [2022-09-16 10:42:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:22,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:22,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:22,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18451033] [2022-09-16 10:42:22,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18451033] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:22,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:22,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:22,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651760704] [2022-09-16 10:42:22,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:22,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:22,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:22,478 INFO L87 Difference]: Start difference. First operand 13252 states and 28098 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:23,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:23,841 INFO L93 Difference]: Finished difference Result 21694 states and 46046 transitions. [2022-09-16 10:42:23,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:42:23,842 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:23,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:23,879 INFO L225 Difference]: With dead ends: 21694 [2022-09-16 10:42:23,879 INFO L226 Difference]: Without dead ends: 21694 [2022-09-16 10:42:23,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=563, Invalid=1243, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:42:23,880 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1773 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:23,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 3608 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21694 states. [2022-09-16 10:42:24,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21694 to 13234. [2022-09-16 10:42:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13234 states, 13148 states have (on average 2.1343170063888044) internal successors, (28062), 13233 states have internal predecessors, (28062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13234 states to 13234 states and 28062 transitions. [2022-09-16 10:42:24,119 INFO L78 Accepts]: Start accepts. Automaton has 13234 states and 28062 transitions. Word has length 71 [2022-09-16 10:42:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:24,119 INFO L495 AbstractCegarLoop]: Abstraction has 13234 states and 28062 transitions. [2022-09-16 10:42:24,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 13234 states and 28062 transitions. [2022-09-16 10:42:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:24,122 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:24,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:24,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-09-16 10:42:24,122 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:24,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:24,122 INFO L85 PathProgramCache]: Analyzing trace with hash 956980240, now seen corresponding path program 115 times [2022-09-16 10:42:24,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:24,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798197557] [2022-09-16 10:42:24,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:24,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:24,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:24,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798197557] [2022-09-16 10:42:24,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798197557] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:24,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:24,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:24,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306628131] [2022-09-16 10:42:24,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:24,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:24,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:24,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:24,378 INFO L87 Difference]: Start difference. First operand 13234 states and 28062 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:25,887 INFO L93 Difference]: Finished difference Result 18028 states and 38202 transitions. [2022-09-16 10:42:25,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:42:25,887 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:25,919 INFO L225 Difference]: With dead ends: 18028 [2022-09-16 10:42:25,919 INFO L226 Difference]: Without dead ends: 18028 [2022-09-16 10:42:25,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2022-09-16 10:42:25,919 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1778 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:25,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 3295 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:42:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18028 states. [2022-09-16 10:42:26,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18028 to 13240. [2022-09-16 10:42:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13240 states, 13154 states have (on average 2.134255739698951) internal successors, (28074), 13239 states have internal predecessors, (28074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13240 states to 13240 states and 28074 transitions. [2022-09-16 10:42:26,133 INFO L78 Accepts]: Start accepts. Automaton has 13240 states and 28074 transitions. Word has length 71 [2022-09-16 10:42:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:26,133 INFO L495 AbstractCegarLoop]: Abstraction has 13240 states and 28074 transitions. [2022-09-16 10:42:26,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:26,133 INFO L276 IsEmpty]: Start isEmpty. Operand 13240 states and 28074 transitions. [2022-09-16 10:42:26,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:26,135 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:26,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:26,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-09-16 10:42:26,136 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1481348492, now seen corresponding path program 116 times [2022-09-16 10:42:26,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:26,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936294279] [2022-09-16 10:42:26,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:26,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:26,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936294279] [2022-09-16 10:42:26,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936294279] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:26,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:26,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319676028] [2022-09-16 10:42:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:26,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:26,331 INFO L87 Difference]: Start difference. First operand 13240 states and 28074 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:27,663 INFO L93 Difference]: Finished difference Result 21775 states and 46217 transitions. [2022-09-16 10:42:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:42:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:27,697 INFO L225 Difference]: With dead ends: 21775 [2022-09-16 10:42:27,697 INFO L226 Difference]: Without dead ends: 21775 [2022-09-16 10:42:27,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:42:27,698 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1531 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:27,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 3889 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21775 states. [2022-09-16 10:42:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21775 to 13234. [2022-09-16 10:42:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13234 states, 13148 states have (on average 2.1343170063888044) internal successors, (28062), 13233 states have internal predecessors, (28062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13234 states to 13234 states and 28062 transitions. [2022-09-16 10:42:27,924 INFO L78 Accepts]: Start accepts. Automaton has 13234 states and 28062 transitions. Word has length 71 [2022-09-16 10:42:27,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:27,925 INFO L495 AbstractCegarLoop]: Abstraction has 13234 states and 28062 transitions. [2022-09-16 10:42:27,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 13234 states and 28062 transitions. [2022-09-16 10:42:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:27,926 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:27,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:27,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-09-16 10:42:27,927 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:27,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:27,927 INFO L85 PathProgramCache]: Analyzing trace with hash 573359880, now seen corresponding path program 117 times [2022-09-16 10:42:27,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:27,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564636629] [2022-09-16 10:42:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:27,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:28,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:28,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564636629] [2022-09-16 10:42:28,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564636629] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:28,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:28,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908109562] [2022-09-16 10:42:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:28,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:28,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:28,098 INFO L87 Difference]: Start difference. First operand 13234 states and 28062 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:29,332 INFO L93 Difference]: Finished difference Result 23183 states and 49244 transitions. [2022-09-16 10:42:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:42:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:29,372 INFO L225 Difference]: With dead ends: 23183 [2022-09-16 10:42:29,372 INFO L226 Difference]: Without dead ends: 23183 [2022-09-16 10:42:29,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:42:29,373 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1924 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:29,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 3000 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:42:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23183 states. [2022-09-16 10:42:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23183 to 13048. [2022-09-16 10:42:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13048 states, 12962 states have (on average 2.1357815151982718) internal successors, (27684), 13047 states have internal predecessors, (27684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:29,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13048 states to 13048 states and 27684 transitions. [2022-09-16 10:42:29,623 INFO L78 Accepts]: Start accepts. Automaton has 13048 states and 27684 transitions. Word has length 71 [2022-09-16 10:42:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:29,623 INFO L495 AbstractCegarLoop]: Abstraction has 13048 states and 27684 transitions. [2022-09-16 10:42:29,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13048 states and 27684 transitions. [2022-09-16 10:42:29,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:29,625 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:29,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:29,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-09-16 10:42:29,625 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:29,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2008651162, now seen corresponding path program 118 times [2022-09-16 10:42:29,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:29,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683301992] [2022-09-16 10:42:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:29,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:29,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:29,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683301992] [2022-09-16 10:42:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683301992] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:29,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603594563] [2022-09-16 10:42:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:29,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:29,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:29,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:29,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:29,898 INFO L87 Difference]: Start difference. First operand 13048 states and 27684 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:31,442 INFO L93 Difference]: Finished difference Result 19027 states and 40466 transitions. [2022-09-16 10:42:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:42:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:31,474 INFO L225 Difference]: With dead ends: 19027 [2022-09-16 10:42:31,474 INFO L226 Difference]: Without dead ends: 19027 [2022-09-16 10:42:31,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=464, Invalid=1096, Unknown=0, NotChecked=0, Total=1560 [2022-09-16 10:42:31,474 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1765 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:31,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 2978 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19027 states. [2022-09-16 10:42:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19027 to 13050. [2022-09-16 10:42:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13050 states, 12964 states have (on average 2.1357605677260105) internal successors, (27688), 13049 states have internal predecessors, (27688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13050 states to 13050 states and 27688 transitions. [2022-09-16 10:42:31,692 INFO L78 Accepts]: Start accepts. Automaton has 13050 states and 27688 transitions. Word has length 71 [2022-09-16 10:42:31,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:31,692 INFO L495 AbstractCegarLoop]: Abstraction has 13050 states and 27688 transitions. [2022-09-16 10:42:31,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13050 states and 27688 transitions. [2022-09-16 10:42:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:31,694 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:31,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:31,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-09-16 10:42:31,694 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:31,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:31,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1247547850, now seen corresponding path program 119 times [2022-09-16 10:42:31,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:31,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808618481] [2022-09-16 10:42:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:31,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:31,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:31,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808618481] [2022-09-16 10:42:31,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808618481] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:31,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:31,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:31,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313091586] [2022-09-16 10:42:31,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:31,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:31,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:31,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:31,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:31,877 INFO L87 Difference]: Start difference. First operand 13050 states and 27688 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:33,504 INFO L93 Difference]: Finished difference Result 19279 states and 40982 transitions. [2022-09-16 10:42:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:42:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:33,537 INFO L225 Difference]: With dead ends: 19279 [2022-09-16 10:42:33,538 INFO L226 Difference]: Without dead ends: 19279 [2022-09-16 10:42:33,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:42:33,538 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 1494 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:33,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 3243 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19279 states. [2022-09-16 10:42:33,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19279 to 13062. [2022-09-16 10:42:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13062 states, 12976 states have (on average 2.1356350184956843) internal successors, (27712), 13061 states have internal predecessors, (27712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 27712 transitions. [2022-09-16 10:42:33,760 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 27712 transitions. Word has length 71 [2022-09-16 10:42:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:33,761 INFO L495 AbstractCegarLoop]: Abstraction has 13062 states and 27712 transitions. [2022-09-16 10:42:33,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 27712 transitions. [2022-09-16 10:42:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:33,762 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:33,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:33,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-09-16 10:42:33,763 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1010538154, now seen corresponding path program 120 times [2022-09-16 10:42:33,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:33,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000967732] [2022-09-16 10:42:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:33,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:33,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000967732] [2022-09-16 10:42:33,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000967732] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:33,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:33,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:33,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184929084] [2022-09-16 10:42:33,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:33,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:33,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:33,999 INFO L87 Difference]: Start difference. First operand 13062 states and 27712 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:35,893 INFO L93 Difference]: Finished difference Result 19144 states and 40703 transitions. [2022-09-16 10:42:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:42:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:35,927 INFO L225 Difference]: With dead ends: 19144 [2022-09-16 10:42:35,927 INFO L226 Difference]: Without dead ends: 19144 [2022-09-16 10:42:35,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:42:35,929 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1446 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:35,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 3500 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:42:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19144 states. [2022-09-16 10:42:36,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19144 to 13068. [2022-09-16 10:42:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13068 states, 12982 states have (on average 2.135572330919735) internal successors, (27724), 13067 states have internal predecessors, (27724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13068 states to 13068 states and 27724 transitions. [2022-09-16 10:42:36,281 INFO L78 Accepts]: Start accepts. Automaton has 13068 states and 27724 transitions. Word has length 71 [2022-09-16 10:42:36,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:36,282 INFO L495 AbstractCegarLoop]: Abstraction has 13068 states and 27724 transitions. [2022-09-16 10:42:36,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:36,282 INFO L276 IsEmpty]: Start isEmpty. Operand 13068 states and 27724 transitions. [2022-09-16 10:42:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:36,284 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:36,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:36,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-09-16 10:42:36,285 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:36,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:36,285 INFO L85 PathProgramCache]: Analyzing trace with hash -486169902, now seen corresponding path program 121 times [2022-09-16 10:42:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:36,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926087500] [2022-09-16 10:42:36,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:36,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:36,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926087500] [2022-09-16 10:42:36,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926087500] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:36,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:36,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:36,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324254374] [2022-09-16 10:42:36,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:36,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:36,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:36,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:36,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:36,574 INFO L87 Difference]: Start difference. First operand 13068 states and 27724 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:38,890 INFO L93 Difference]: Finished difference Result 21699 states and 46073 transitions. [2022-09-16 10:42:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:42:38,890 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:38,930 INFO L225 Difference]: With dead ends: 21699 [2022-09-16 10:42:38,930 INFO L226 Difference]: Without dead ends: 21699 [2022-09-16 10:42:38,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=630, Invalid=1350, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:42:38,931 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 1626 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 4095 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:38,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 4095 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:42:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21699 states. [2022-09-16 10:42:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21699 to 13042. [2022-09-16 10:42:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13042 states, 12956 states have (on average 2.1358443964186478) internal successors, (27672), 13041 states have internal predecessors, (27672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:39,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 27672 transitions. [2022-09-16 10:42:39,180 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 27672 transitions. Word has length 71 [2022-09-16 10:42:39,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:39,180 INFO L495 AbstractCegarLoop]: Abstraction has 13042 states and 27672 transitions. [2022-09-16 10:42:39,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:39,180 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 27672 transitions. [2022-09-16 10:42:39,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:39,182 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:39,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:39,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-09-16 10:42:39,182 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1097452540, now seen corresponding path program 122 times [2022-09-16 10:42:39,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:39,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258039229] [2022-09-16 10:42:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:39,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:39,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258039229] [2022-09-16 10:42:39,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258039229] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:39,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:39,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:39,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245384917] [2022-09-16 10:42:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:39,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:39,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:39,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:39,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:39,534 INFO L87 Difference]: Start difference. First operand 13042 states and 27672 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:41,066 INFO L93 Difference]: Finished difference Result 17755 states and 37796 transitions. [2022-09-16 10:42:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:42:41,067 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:41,096 INFO L225 Difference]: With dead ends: 17755 [2022-09-16 10:42:41,096 INFO L226 Difference]: Without dead ends: 17755 [2022-09-16 10:42:41,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=498, Invalid=1142, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:42:41,096 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 1665 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:41,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 2950 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17755 states. [2022-09-16 10:42:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17755 to 13042. [2022-09-16 10:42:41,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13042 states, 12956 states have (on average 2.1358443964186478) internal successors, (27672), 13041 states have internal predecessors, (27672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 27672 transitions. [2022-09-16 10:42:41,323 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 27672 transitions. Word has length 71 [2022-09-16 10:42:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:41,324 INFO L495 AbstractCegarLoop]: Abstraction has 13042 states and 27672 transitions. [2022-09-16 10:42:41,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 27672 transitions. [2022-09-16 10:42:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:41,325 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:41,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:41,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-09-16 10:42:41,326 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1922727038, now seen corresponding path program 123 times [2022-09-16 10:42:41,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:41,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239451190] [2022-09-16 10:42:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:41,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:41,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:41,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239451190] [2022-09-16 10:42:41,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239451190] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:41,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:41,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:41,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564039690] [2022-09-16 10:42:41,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:41,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:41,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:41,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:41,584 INFO L87 Difference]: Start difference. First operand 13042 states and 27672 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:43,302 INFO L93 Difference]: Finished difference Result 18101 states and 38506 transitions. [2022-09-16 10:42:43,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:42:43,303 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:43,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:43,333 INFO L225 Difference]: With dead ends: 18101 [2022-09-16 10:42:43,333 INFO L226 Difference]: Without dead ends: 18101 [2022-09-16 10:42:43,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:42:43,333 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 1460 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:43,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 3835 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:42:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2022-09-16 10:42:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 13031. [2022-09-16 10:42:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13031 states, 12945 states have (on average 2.1358825801467747) internal successors, (27649), 13030 states have internal predecessors, (27649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13031 states to 13031 states and 27649 transitions. [2022-09-16 10:42:43,553 INFO L78 Accepts]: Start accepts. Automaton has 13031 states and 27649 transitions. Word has length 71 [2022-09-16 10:42:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:43,554 INFO L495 AbstractCegarLoop]: Abstraction has 13031 states and 27649 transitions. [2022-09-16 10:42:43,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13031 states and 27649 transitions. [2022-09-16 10:42:43,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:43,555 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:43,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:43,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-09-16 10:42:43,556 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:43,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:43,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1333471974, now seen corresponding path program 124 times [2022-09-16 10:42:43,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:43,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678155823] [2022-09-16 10:42:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:43,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:43,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:43,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678155823] [2022-09-16 10:42:43,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678155823] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:43,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:43,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646895246] [2022-09-16 10:42:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:43,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:43,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:43,736 INFO L87 Difference]: Start difference. First operand 13031 states and 27649 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:45,170 INFO L93 Difference]: Finished difference Result 17996 states and 38289 transitions. [2022-09-16 10:42:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:42:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:45,202 INFO L225 Difference]: With dead ends: 17996 [2022-09-16 10:42:45,202 INFO L226 Difference]: Without dead ends: 17996 [2022-09-16 10:42:45,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=630, Invalid=1350, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:42:45,203 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 1582 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:45,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 3156 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-09-16 10:42:45,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 12965. [2022-09-16 10:42:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12965 states, 12879 states have (on average 2.13611305225561) internal successors, (27511), 12964 states have internal predecessors, (27511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12965 states to 12965 states and 27511 transitions. [2022-09-16 10:42:45,420 INFO L78 Accepts]: Start accepts. Automaton has 12965 states and 27511 transitions. Word has length 71 [2022-09-16 10:42:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:45,420 INFO L495 AbstractCegarLoop]: Abstraction has 12965 states and 27511 transitions. [2022-09-16 10:42:45,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 12965 states and 27511 transitions. [2022-09-16 10:42:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:45,422 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:45,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:45,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-09-16 10:42:45,422 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash -924614030, now seen corresponding path program 125 times [2022-09-16 10:42:45,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:45,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627069310] [2022-09-16 10:42:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:45,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:45,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:45,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627069310] [2022-09-16 10:42:45,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627069310] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:45,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:45,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333436634] [2022-09-16 10:42:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:45,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:45,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:45,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:45,688 INFO L87 Difference]: Start difference. First operand 12965 states and 27511 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:47,646 INFO L93 Difference]: Finished difference Result 17861 states and 38010 transitions. [2022-09-16 10:42:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 10:42:47,646 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:47,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:47,673 INFO L225 Difference]: With dead ends: 17861 [2022-09-16 10:42:47,673 INFO L226 Difference]: Without dead ends: 17861 [2022-09-16 10:42:47,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=663, Invalid=1407, Unknown=0, NotChecked=0, Total=2070 [2022-09-16 10:42:47,674 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1643 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:47,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 2948 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:42:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17861 states. [2022-09-16 10:42:47,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17861 to 12932. [2022-09-16 10:42:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12932 states, 12846 states have (on average 2.1362291763973222) internal successors, (27442), 12931 states have internal predecessors, (27442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12932 states to 12932 states and 27442 transitions. [2022-09-16 10:42:47,871 INFO L78 Accepts]: Start accepts. Automaton has 12932 states and 27442 transitions. Word has length 71 [2022-09-16 10:42:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:47,872 INFO L495 AbstractCegarLoop]: Abstraction has 12932 states and 27442 transitions. [2022-09-16 10:42:47,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 12932 states and 27442 transitions. [2022-09-16 10:42:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:42:47,873 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:47,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:47,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-09-16 10:42:47,873 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:47,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:47,874 INFO L85 PathProgramCache]: Analyzing trace with hash -400245778, now seen corresponding path program 126 times [2022-09-16 10:42:47,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:47,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660662999] [2022-09-16 10:42:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:47,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:48,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:48,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660662999] [2022-09-16 10:42:48,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660662999] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:48,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:48,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-09-16 10:42:48,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68887620] [2022-09-16 10:42:48,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:48,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:42:48,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:48,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:42:48,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:42:48,086 INFO L87 Difference]: Start difference. First operand 12932 states and 27442 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:49,952 INFO L93 Difference]: Finished difference Result 20195 states and 42882 transitions. [2022-09-16 10:42:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-09-16 10:42:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-09-16 10:42:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:49,983 INFO L225 Difference]: With dead ends: 20195 [2022-09-16 10:42:49,983 INFO L226 Difference]: Without dead ends: 20195 [2022-09-16 10:42:49,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=696, Invalid=1466, Unknown=0, NotChecked=0, Total=2162 [2022-09-16 10:42:49,984 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 1808 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:49,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 3611 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:42:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20195 states. [2022-09-16 10:42:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20195 to 12195. [2022-09-16 10:42:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12195 states, 12109 states have (on average 2.1347757866050046) internal successors, (25850), 12194 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12195 states to 12195 states and 25850 transitions. [2022-09-16 10:42:50,182 INFO L78 Accepts]: Start accepts. Automaton has 12195 states and 25850 transitions. Word has length 71 [2022-09-16 10:42:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:50,182 INFO L495 AbstractCegarLoop]: Abstraction has 12195 states and 25850 transitions. [2022-09-16 10:42:50,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,183 INFO L276 IsEmpty]: Start isEmpty. Operand 12195 states and 25850 transitions. [2022-09-16 10:42:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:42:50,184 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:50,184 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:50,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-09-16 10:42:50,184 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2140269047, now seen corresponding path program 1 times [2022-09-16 10:42:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:50,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520180904] [2022-09-16 10:42:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:42:50,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:50,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520180904] [2022-09-16 10:42:50,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520180904] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:50,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:50,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:42:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707856107] [2022-09-16 10:42:50,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:50,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:42:50,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:50,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:42:50,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:42:50,197 INFO L87 Difference]: Start difference. First operand 12195 states and 25850 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:50,237 INFO L93 Difference]: Finished difference Result 12009 states and 25472 transitions. [2022-09-16 10:42:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:42:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-09-16 10:42:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:50,255 INFO L225 Difference]: With dead ends: 12009 [2022-09-16 10:42:50,255 INFO L226 Difference]: Without dead ends: 12009 [2022-09-16 10:42:50,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:42:50,256 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 98 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:50,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 305 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:42:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12009 states. [2022-09-16 10:42:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12009 to 12009. [2022-09-16 10:42:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12009 states, 11943 states have (on average 2.1327974545759023) internal successors, (25472), 12008 states have internal predecessors, (25472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 25472 transitions. [2022-09-16 10:42:50,419 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 25472 transitions. Word has length 72 [2022-09-16 10:42:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:50,419 INFO L495 AbstractCegarLoop]: Abstraction has 12009 states and 25472 transitions. [2022-09-16 10:42:50,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 25472 transitions. [2022-09-16 10:42:50,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:42:50,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:50,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:50,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-09-16 10:42:50,421 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1923830757, now seen corresponding path program 1 times [2022-09-16 10:42:50,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:50,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835818257] [2022-09-16 10:42:50,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:50,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:50,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:50,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835818257] [2022-09-16 10:42:50,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835818257] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:42:50,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837838217] [2022-09-16 10:42:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:50,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:42:50,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:42:50,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:42:50,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:42:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:50,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:42:50,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:42:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:50,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:42:50,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837838217] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:50,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:42:50,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 10:42:50,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868642118] [2022-09-16 10:42:50,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:50,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:42:50,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:42:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:42:50,725 INFO L87 Difference]: Start difference. First operand 12009 states and 25472 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:50,775 INFO L93 Difference]: Finished difference Result 12267 states and 25732 transitions. [2022-09-16 10:42:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:42:50,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-09-16 10:42:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:50,795 INFO L225 Difference]: With dead ends: 12267 [2022-09-16 10:42:50,795 INFO L226 Difference]: Without dead ends: 12267 [2022-09-16 10:42:50,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:42:50,795 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 180 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:50,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 476 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:42:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12267 states. [2022-09-16 10:42:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12267 to 10790. [2022-09-16 10:42:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10790 states, 10744 states have (on average 2.1279784065524945) internal successors, (22863), 10789 states have internal predecessors, (22863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10790 states to 10790 states and 22863 transitions. [2022-09-16 10:42:50,960 INFO L78 Accepts]: Start accepts. Automaton has 10790 states and 22863 transitions. Word has length 73 [2022-09-16 10:42:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:50,960 INFO L495 AbstractCegarLoop]: Abstraction has 10790 states and 22863 transitions. [2022-09-16 10:42:50,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:50,961 INFO L276 IsEmpty]: Start isEmpty. Operand 10790 states and 22863 transitions. [2022-09-16 10:42:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:42:50,962 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:50,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:50,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:42:51,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2022-09-16 10:42:51,175 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:51,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1843995081, now seen corresponding path program 1 times [2022-09-16 10:42:51,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:51,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020192175] [2022-09-16 10:42:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:51,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:51,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:51,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:51,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020192175] [2022-09-16 10:42:51,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020192175] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:51,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:51,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:42:51,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649451698] [2022-09-16 10:42:51,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:51,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:42:51,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:51,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:42:51,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:42:51,563 INFO L87 Difference]: Start difference. First operand 10790 states and 22863 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:55,440 INFO L93 Difference]: Finished difference Result 14593 states and 30598 transitions. [2022-09-16 10:42:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-16 10:42:55,440 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:42:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:55,463 INFO L225 Difference]: With dead ends: 14593 [2022-09-16 10:42:55,463 INFO L226 Difference]: Without dead ends: 14593 [2022-09-16 10:42:55,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1916, Invalid=5056, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:42:55,465 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1920 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 4681 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:55,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 4681 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:42:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14593 states. [2022-09-16 10:42:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14593 to 11573. [2022-09-16 10:42:55,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11573 states, 11527 states have (on average 2.1211937190943004) internal successors, (24451), 11572 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11573 states to 11573 states and 24451 transitions. [2022-09-16 10:42:55,637 INFO L78 Accepts]: Start accepts. Automaton has 11573 states and 24451 transitions. Word has length 76 [2022-09-16 10:42:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:55,638 INFO L495 AbstractCegarLoop]: Abstraction has 11573 states and 24451 transitions. [2022-09-16 10:42:55,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:55,638 INFO L276 IsEmpty]: Start isEmpty. Operand 11573 states and 24451 transitions. [2022-09-16 10:42:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:42:55,640 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:55,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:55,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-09-16 10:42:55,641 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:55,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2069503501, now seen corresponding path program 2 times [2022-09-16 10:42:55,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:55,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710917884] [2022-09-16 10:42:55,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:55,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:55,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:55,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:55,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710917884] [2022-09-16 10:42:55,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710917884] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:55,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:55,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:42:55,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699063338] [2022-09-16 10:42:55,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:55,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:42:55,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:42:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:42:55,926 INFO L87 Difference]: Start difference. First operand 11573 states and 24451 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:59,559 INFO L93 Difference]: Finished difference Result 16015 states and 33486 transitions. [2022-09-16 10:42:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-09-16 10:42:59,559 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:42:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:59,585 INFO L225 Difference]: With dead ends: 16015 [2022-09-16 10:42:59,585 INFO L226 Difference]: Without dead ends: 16015 [2022-09-16 10:42:59,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2209, Invalid=5801, Unknown=0, NotChecked=0, Total=8010 [2022-09-16 10:42:59,586 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 1960 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:59,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 5588 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:42:59,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2022-09-16 10:42:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 11576. [2022-09-16 10:42:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11576 states, 11530 states have (on average 2.1211621856027754) internal successors, (24457), 11575 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11576 states to 11576 states and 24457 transitions. [2022-09-16 10:42:59,767 INFO L78 Accepts]: Start accepts. Automaton has 11576 states and 24457 transitions. Word has length 76 [2022-09-16 10:42:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:59,767 INFO L495 AbstractCegarLoop]: Abstraction has 11576 states and 24457 transitions. [2022-09-16 10:42:59,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 11576 states and 24457 transitions. [2022-09-16 10:42:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:42:59,770 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:59,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:59,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-09-16 10:42:59,770 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:59,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 519055671, now seen corresponding path program 3 times [2022-09-16 10:42:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:59,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606728813] [2022-09-16 10:42:59,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:59,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:00,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606728813] [2022-09-16 10:43:00,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606728813] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:00,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:00,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097697353] [2022-09-16 10:43:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:00,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:00,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:00,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:00,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:00,079 INFO L87 Difference]: Start difference. First operand 11576 states and 24457 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:04,615 INFO L93 Difference]: Finished difference Result 15880 states and 33216 transitions. [2022-09-16 10:43:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-16 10:43:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:04,641 INFO L225 Difference]: With dead ends: 15880 [2022-09-16 10:43:04,641 INFO L226 Difference]: Without dead ends: 15880 [2022-09-16 10:43:04,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2262, Invalid=5928, Unknown=0, NotChecked=0, Total=8190 [2022-09-16 10:43:04,642 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 1970 mSDsluCounter, 4325 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:04,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1970 Valid, 4781 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:04,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15880 states. [2022-09-16 10:43:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15880 to 11577. [2022-09-16 10:43:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11577 states, 11531 states have (on average 2.1211516780851616) internal successors, (24459), 11576 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11577 states to 11577 states and 24459 transitions. [2022-09-16 10:43:04,832 INFO L78 Accepts]: Start accepts. Automaton has 11577 states and 24459 transitions. Word has length 76 [2022-09-16 10:43:04,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:04,832 INFO L495 AbstractCegarLoop]: Abstraction has 11577 states and 24459 transitions. [2022-09-16 10:43:04,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 11577 states and 24459 transitions. [2022-09-16 10:43:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:04,835 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:04,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:04,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-09-16 10:43:04,835 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:04,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 793152981, now seen corresponding path program 4 times [2022-09-16 10:43:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:04,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642492725] [2022-09-16 10:43:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642492725] [2022-09-16 10:43:05,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642492725] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:05,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:05,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100552636] [2022-09-16 10:43:05,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:05,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:05,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:05,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:05,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:05,033 INFO L87 Difference]: Start difference. First operand 11577 states and 24459 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:09,170 INFO L93 Difference]: Finished difference Result 15790 states and 33036 transitions. [2022-09-16 10:43:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-16 10:43:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:09,197 INFO L225 Difference]: With dead ends: 15790 [2022-09-16 10:43:09,197 INFO L226 Difference]: Without dead ends: 15790 [2022-09-16 10:43:09,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2312, Invalid=6060, Unknown=0, NotChecked=0, Total=8372 [2022-09-16 10:43:09,198 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1965 mSDsluCounter, 4877 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:09,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 5327 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15790 states. [2022-09-16 10:43:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15790 to 11578. [2022-09-16 10:43:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 11532 states have (on average 2.121141172389872) internal successors, (24461), 11577 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 24461 transitions. [2022-09-16 10:43:09,378 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 24461 transitions. Word has length 76 [2022-09-16 10:43:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:09,378 INFO L495 AbstractCegarLoop]: Abstraction has 11578 states and 24461 transitions. [2022-09-16 10:43:09,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 24461 transitions. [2022-09-16 10:43:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:09,381 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:09,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:09,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-09-16 10:43:09,381 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:09,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:09,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1850431117, now seen corresponding path program 5 times [2022-09-16 10:43:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:09,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341085885] [2022-09-16 10:43:09,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:09,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:09,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:09,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341085885] [2022-09-16 10:43:09,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341085885] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:09,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:09,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:09,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332127039] [2022-09-16 10:43:09,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:09,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:09,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:09,589 INFO L87 Difference]: Start difference. First operand 11578 states and 24461 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:13,712 INFO L93 Difference]: Finished difference Result 15808 states and 33087 transitions. [2022-09-16 10:43:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-16 10:43:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:13,736 INFO L225 Difference]: With dead ends: 15808 [2022-09-16 10:43:13,736 INFO L226 Difference]: Without dead ends: 15808 [2022-09-16 10:43:13,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1577 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2444, Invalid=6486, Unknown=0, NotChecked=0, Total=8930 [2022-09-16 10:43:13,737 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 1882 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 5482 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:13,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 5482 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2762 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15808 states. [2022-09-16 10:43:13,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15808 to 11586. [2022-09-16 10:43:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11540 states have (on average 2.12105719237435) internal successors, (24477), 11585 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 24477 transitions. [2022-09-16 10:43:13,894 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 24477 transitions. Word has length 76 [2022-09-16 10:43:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:13,894 INFO L495 AbstractCegarLoop]: Abstraction has 11586 states and 24477 transitions. [2022-09-16 10:43:13,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 24477 transitions. [2022-09-16 10:43:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:13,896 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:13,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:13,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-09-16 10:43:13,896 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1033426679, now seen corresponding path program 6 times [2022-09-16 10:43:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:13,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379014514] [2022-09-16 10:43:13,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:13,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:14,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:14,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379014514] [2022-09-16 10:43:14,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379014514] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:14,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:14,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:14,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201118111] [2022-09-16 10:43:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:14,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:14,201 INFO L87 Difference]: Start difference. First operand 11586 states and 24477 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:18,213 INFO L93 Difference]: Finished difference Result 15612 states and 32678 transitions. [2022-09-16 10:43:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-09-16 10:43:18,213 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:18,235 INFO L225 Difference]: With dead ends: 15612 [2022-09-16 10:43:18,235 INFO L226 Difference]: Without dead ends: 15612 [2022-09-16 10:43:18,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1609 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2482, Invalid=6638, Unknown=0, NotChecked=0, Total=9120 [2022-09-16 10:43:18,236 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2016 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 5018 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:18,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 5018 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:43:18,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15612 states. [2022-09-16 10:43:18,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15612 to 11600. [2022-09-16 10:43:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11600 states, 11554 states have (on average 2.1209970572961745) internal successors, (24506), 11599 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11600 states to 11600 states and 24506 transitions. [2022-09-16 10:43:18,383 INFO L78 Accepts]: Start accepts. Automaton has 11600 states and 24506 transitions. Word has length 76 [2022-09-16 10:43:18,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:18,383 INFO L495 AbstractCegarLoop]: Abstraction has 11600 states and 24506 transitions. [2022-09-16 10:43:18,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 11600 states and 24506 transitions. [2022-09-16 10:43:18,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:18,385 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:18,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:18,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-09-16 10:43:18,385 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash 159901811, now seen corresponding path program 7 times [2022-09-16 10:43:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:18,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183416043] [2022-09-16 10:43:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:18,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:18,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:18,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183416043] [2022-09-16 10:43:18,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183416043] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:18,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:18,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188784922] [2022-09-16 10:43:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:18,756 INFO L87 Difference]: Start difference. First operand 11600 states and 24506 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:24,161 INFO L93 Difference]: Finished difference Result 15188 states and 31803 transitions. [2022-09-16 10:43:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-09-16 10:43:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:24,181 INFO L225 Difference]: With dead ends: 15188 [2022-09-16 10:43:24,181 INFO L226 Difference]: Without dead ends: 15188 [2022-09-16 10:43:24,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1658 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2348, Invalid=6394, Unknown=0, NotChecked=0, Total=8742 [2022-09-16 10:43:24,182 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 2021 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:24,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 4824 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:43:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15188 states. [2022-09-16 10:43:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15188 to 11605. [2022-09-16 10:43:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11605 states, 11559 states have (on average 2.1209447184012458) internal successors, (24516), 11604 states have internal predecessors, (24516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11605 states to 11605 states and 24516 transitions. [2022-09-16 10:43:24,327 INFO L78 Accepts]: Start accepts. Automaton has 11605 states and 24516 transitions. Word has length 76 [2022-09-16 10:43:24,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:24,327 INFO L495 AbstractCegarLoop]: Abstraction has 11605 states and 24516 transitions. [2022-09-16 10:43:24,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand 11605 states and 24516 transitions. [2022-09-16 10:43:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:24,330 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:24,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:24,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-09-16 10:43:24,330 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:24,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash 799177757, now seen corresponding path program 8 times [2022-09-16 10:43:24,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:24,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103113828] [2022-09-16 10:43:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:24,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:24,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103113828] [2022-09-16 10:43:24,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103113828] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:24,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:24,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:24,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546233689] [2022-09-16 10:43:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:24,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:24,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:24,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:24,610 INFO L87 Difference]: Start difference. First operand 11605 states and 24516 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:28,836 INFO L93 Difference]: Finished difference Result 15498 states and 32435 transitions. [2022-09-16 10:43:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-09-16 10:43:28,836 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:28,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:28,858 INFO L225 Difference]: With dead ends: 15498 [2022-09-16 10:43:28,858 INFO L226 Difference]: Without dead ends: 15498 [2022-09-16 10:43:28,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1788, Invalid=4854, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:43:28,859 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1832 mSDsluCounter, 4334 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:28,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 4682 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:28,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15498 states. [2022-09-16 10:43:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15498 to 11554. [2022-09-16 10:43:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11554 states, 11508 states have (on average 2.12148070907195) internal successors, (24414), 11553 states have internal predecessors, (24414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 24414 transitions. [2022-09-16 10:43:29,005 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 24414 transitions. Word has length 76 [2022-09-16 10:43:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:29,005 INFO L495 AbstractCegarLoop]: Abstraction has 11554 states and 24414 transitions. [2022-09-16 10:43:29,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 24414 transitions. [2022-09-16 10:43:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:29,007 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:29,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:29,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-09-16 10:43:29,007 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash -907230367, now seen corresponding path program 9 times [2022-09-16 10:43:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:29,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383255875] [2022-09-16 10:43:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:29,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:29,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:29,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383255875] [2022-09-16 10:43:29,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383255875] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:29,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:29,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:29,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765049965] [2022-09-16 10:43:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:29,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:29,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:29,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:29,287 INFO L87 Difference]: Start difference. First operand 11554 states and 24414 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:33,966 INFO L93 Difference]: Finished difference Result 16458 states and 34392 transitions. [2022-09-16 10:43:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:43:33,967 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:33,988 INFO L225 Difference]: With dead ends: 16458 [2022-09-16 10:43:33,988 INFO L226 Difference]: Without dead ends: 16458 [2022-09-16 10:43:33,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2076, Invalid=5580, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:43:33,989 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 1967 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 4514 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:33,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 4514 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16458 states. [2022-09-16 10:43:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16458 to 11555. [2022-09-16 10:43:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11555 states, 11509 states have (on average 2.121470153792684) internal successors, (24416), 11554 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11555 states to 11555 states and 24416 transitions. [2022-09-16 10:43:34,143 INFO L78 Accepts]: Start accepts. Automaton has 11555 states and 24416 transitions. Word has length 76 [2022-09-16 10:43:34,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:34,144 INFO L495 AbstractCegarLoop]: Abstraction has 11555 states and 24416 transitions. [2022-09-16 10:43:34,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 11555 states and 24416 transitions. [2022-09-16 10:43:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:34,146 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:34,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:34,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-09-16 10:43:34,146 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:34,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:34,146 INFO L85 PathProgramCache]: Analyzing trace with hash -633133057, now seen corresponding path program 10 times [2022-09-16 10:43:34,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:34,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449986307] [2022-09-16 10:43:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:34,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:34,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449986307] [2022-09-16 10:43:34,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449986307] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:34,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:34,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720452969] [2022-09-16 10:43:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:34,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:34,424 INFO L87 Difference]: Start difference. First operand 11555 states and 24416 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:39,502 INFO L93 Difference]: Finished difference Result 16368 states and 34212 transitions. [2022-09-16 10:43:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:43:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:39,525 INFO L225 Difference]: With dead ends: 16368 [2022-09-16 10:43:39,525 INFO L226 Difference]: Without dead ends: 16368 [2022-09-16 10:43:39,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2126, Invalid=5706, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:43:39,526 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 2196 mSDsluCounter, 5674 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 6129 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:39,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 6129 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:43:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16368 states. [2022-09-16 10:43:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16368 to 11556. [2022-09-16 10:43:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11556 states, 11510 states have (on average 2.121459600347524) internal successors, (24418), 11555 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11556 states to 11556 states and 24418 transitions. [2022-09-16 10:43:39,681 INFO L78 Accepts]: Start accepts. Automaton has 11556 states and 24418 transitions. Word has length 76 [2022-09-16 10:43:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:39,681 INFO L495 AbstractCegarLoop]: Abstraction has 11556 states and 24418 transitions. [2022-09-16 10:43:39,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 11556 states and 24418 transitions. [2022-09-16 10:43:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:39,683 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:39,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:39,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-09-16 10:43:39,684 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1018250141, now seen corresponding path program 11 times [2022-09-16 10:43:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349861692] [2022-09-16 10:43:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:39,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:39,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349861692] [2022-09-16 10:43:39,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349861692] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:39,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:39,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666352325] [2022-09-16 10:43:39,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:39,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:39,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:39,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:39,964 INFO L87 Difference]: Start difference. First operand 11556 states and 24418 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:44,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:44,555 INFO L93 Difference]: Finished difference Result 16386 states and 34263 transitions. [2022-09-16 10:43:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-16 10:43:44,556 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:44,578 INFO L225 Difference]: With dead ends: 16386 [2022-09-16 10:43:44,578 INFO L226 Difference]: Without dead ends: 16386 [2022-09-16 10:43:44,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1477 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2258, Invalid=6114, Unknown=0, NotChecked=0, Total=8372 [2022-09-16 10:43:44,579 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1944 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:44,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 5055 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16386 states. [2022-09-16 10:43:44,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16386 to 11564. [2022-09-16 10:43:44,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11564 states, 11518 states have (on average 2.1213752387567286) internal successors, (24434), 11563 states have internal predecessors, (24434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11564 states to 11564 states and 24434 transitions. [2022-09-16 10:43:44,756 INFO L78 Accepts]: Start accepts. Automaton has 11564 states and 24434 transitions. Word has length 76 [2022-09-16 10:43:44,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:44,757 INFO L495 AbstractCegarLoop]: Abstraction has 11564 states and 24434 transitions. [2022-09-16 10:43:44,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 11564 states and 24434 transitions. [2022-09-16 10:43:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:44,759 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:44,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:44,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-09-16 10:43:44,759 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:44,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash -392859359, now seen corresponding path program 12 times [2022-09-16 10:43:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:44,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922536493] [2022-09-16 10:43:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:44,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922536493] [2022-09-16 10:43:44,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922536493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:44,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:44,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:44,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707793456] [2022-09-16 10:43:44,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:44,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:44,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:44,983 INFO L87 Difference]: Start difference. First operand 11564 states and 24434 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:48,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:48,963 INFO L93 Difference]: Finished difference Result 16514 states and 34509 transitions. [2022-09-16 10:43:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-09-16 10:43:48,963 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:48,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:48,985 INFO L225 Difference]: With dead ends: 16514 [2022-09-16 10:43:48,985 INFO L226 Difference]: Without dead ends: 16514 [2022-09-16 10:43:48,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1506 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2296, Invalid=6260, Unknown=0, NotChecked=0, Total=8556 [2022-09-16 10:43:48,986 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 2154 mSDsluCounter, 4526 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 4922 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:48,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 4922 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16514 states. [2022-09-16 10:43:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16514 to 11578. [2022-09-16 10:43:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 11532 states have (on average 2.1213146028442593) internal successors, (24463), 11577 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 24463 transitions. [2022-09-16 10:43:49,139 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 24463 transitions. Word has length 76 [2022-09-16 10:43:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:49,139 INFO L495 AbstractCegarLoop]: Abstraction has 11578 states and 24463 transitions. [2022-09-16 10:43:49,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:49,139 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 24463 transitions. [2022-09-16 10:43:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:49,142 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:49,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:49,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-09-16 10:43:49,142 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1266384227, now seen corresponding path program 13 times [2022-09-16 10:43:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:49,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104938970] [2022-09-16 10:43:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104938970] [2022-09-16 10:43:49,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104938970] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:49,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:49,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:49,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550742296] [2022-09-16 10:43:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:49,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:49,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:49,362 INFO L87 Difference]: Start difference. First operand 11578 states and 24463 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:53,532 INFO L93 Difference]: Finished difference Result 16045 states and 33543 transitions. [2022-09-16 10:43:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-09-16 10:43:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:53,554 INFO L225 Difference]: With dead ends: 16045 [2022-09-16 10:43:53,554 INFO L226 Difference]: Without dead ends: 16045 [2022-09-16 10:43:53,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2717, Invalid=7383, Unknown=0, NotChecked=0, Total=10100 [2022-09-16 10:43:53,555 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1902 mSDsluCounter, 5002 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:53,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 5503 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16045 states. [2022-09-16 10:43:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16045 to 11551. [2022-09-16 10:43:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11551 states, 11505 states have (on average 2.1215123859191656) internal successors, (24408), 11550 states have internal predecessors, (24408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11551 states to 11551 states and 24408 transitions. [2022-09-16 10:43:53,710 INFO L78 Accepts]: Start accepts. Automaton has 11551 states and 24408 transitions. Word has length 76 [2022-09-16 10:43:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:53,710 INFO L495 AbstractCegarLoop]: Abstraction has 11551 states and 24408 transitions. [2022-09-16 10:43:53,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 11551 states and 24408 transitions. [2022-09-16 10:43:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:53,713 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:53,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:53,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-09-16 10:43:53,713 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:53,713 INFO L85 PathProgramCache]: Analyzing trace with hash -728516705, now seen corresponding path program 14 times [2022-09-16 10:43:53,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:53,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809039274] [2022-09-16 10:43:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:53,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:53,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809039274] [2022-09-16 10:43:53,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809039274] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:53,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:53,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:53,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873968496] [2022-09-16 10:43:53,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:53,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:53,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:53,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:53,989 INFO L87 Difference]: Start difference. First operand 11551 states and 24408 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:57,899 INFO L93 Difference]: Finished difference Result 15360 states and 32159 transitions. [2022-09-16 10:43:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-09-16 10:43:57,900 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:43:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:57,920 INFO L225 Difference]: With dead ends: 15360 [2022-09-16 10:43:57,921 INFO L226 Difference]: Without dead ends: 15360 [2022-09-16 10:43:57,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1638, Invalid=4524, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:43:57,921 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1870 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:57,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 3946 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:43:57,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15360 states. [2022-09-16 10:43:58,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15360 to 11500. [2022-09-16 10:43:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11500 states, 11454 states have (on average 2.1220534311157673) internal successors, (24306), 11499 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11500 states to 11500 states and 24306 transitions. [2022-09-16 10:43:58,074 INFO L78 Accepts]: Start accepts. Automaton has 11500 states and 24306 transitions. Word has length 76 [2022-09-16 10:43:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:58,074 INFO L495 AbstractCegarLoop]: Abstraction has 11500 states and 24306 transitions. [2022-09-16 10:43:58,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 11500 states and 24306 transitions. [2022-09-16 10:43:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:43:58,076 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:58,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:58,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-09-16 10:43:58,077 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -454419395, now seen corresponding path program 15 times [2022-09-16 10:43:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:58,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081546509] [2022-09-16 10:43:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:58,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:58,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081546509] [2022-09-16 10:43:58,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081546509] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:58,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:58,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:43:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696545485] [2022-09-16 10:43:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:58,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:43:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:58,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:43:58,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:43:58,356 INFO L87 Difference]: Start difference. First operand 11500 states and 24306 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:02,853 INFO L93 Difference]: Finished difference Result 16229 states and 33934 transitions. [2022-09-16 10:44:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:44:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:02,875 INFO L225 Difference]: With dead ends: 16229 [2022-09-16 10:44:02,875 INFO L226 Difference]: Without dead ends: 16229 [2022-09-16 10:44:02,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1920, Invalid=5220, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:44:02,876 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1993 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:02,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 4643 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:44:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16229 states. [2022-09-16 10:44:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16229 to 11501. [2022-09-16 10:44:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 11455 states have (on average 2.122042776080314) internal successors, (24308), 11500 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 24308 transitions. [2022-09-16 10:44:03,028 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 24308 transitions. Word has length 76 [2022-09-16 10:44:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:03,028 INFO L495 AbstractCegarLoop]: Abstraction has 11501 states and 24308 transitions. [2022-09-16 10:44:03,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 24308 transitions. [2022-09-16 10:44:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:03,031 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:03,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:03,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-09-16 10:44:03,031 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1196963803, now seen corresponding path program 16 times [2022-09-16 10:44:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:03,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023646422] [2022-09-16 10:44:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:03,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:03,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023646422] [2022-09-16 10:44:03,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023646422] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:03,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:03,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269579404] [2022-09-16 10:44:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:03,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:03,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:03,278 INFO L87 Difference]: Start difference. First operand 11501 states and 24308 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:07,446 INFO L93 Difference]: Finished difference Result 16247 states and 33985 transitions. [2022-09-16 10:44:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:44:07,447 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:07,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:07,469 INFO L225 Difference]: With dead ends: 16247 [2022-09-16 10:44:07,469 INFO L226 Difference]: Without dead ends: 16247 [2022-09-16 10:44:07,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2052, Invalid=5604, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:44:07,470 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1895 mSDsluCounter, 4906 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:07,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 5312 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:44:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16247 states. [2022-09-16 10:44:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16247 to 11509. [2022-09-16 10:44:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11509 states, 11463 states have (on average 2.1219576027218006) internal successors, (24324), 11508 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11509 states to 11509 states and 24324 transitions. [2022-09-16 10:44:07,646 INFO L78 Accepts]: Start accepts. Automaton has 11509 states and 24324 transitions. Word has length 76 [2022-09-16 10:44:07,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:07,646 INFO L495 AbstractCegarLoop]: Abstraction has 11509 states and 24324 transitions. [2022-09-16 10:44:07,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 11509 states and 24324 transitions. [2022-09-16 10:44:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:07,649 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:07,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:07,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-09-16 10:44:07,649 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:07,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash -214145697, now seen corresponding path program 17 times [2022-09-16 10:44:07,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:07,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018912735] [2022-09-16 10:44:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:07,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018912735] [2022-09-16 10:44:07,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018912735] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:07,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:07,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:07,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907503101] [2022-09-16 10:44:07,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:07,858 INFO L87 Difference]: Start difference. First operand 11509 states and 24324 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:12,499 INFO L93 Difference]: Finished difference Result 16375 states and 34231 transitions. [2022-09-16 10:44:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:44:12,499 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:12,525 INFO L225 Difference]: With dead ends: 16375 [2022-09-16 10:44:12,525 INFO L226 Difference]: Without dead ends: 16375 [2022-09-16 10:44:12,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1350 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2090, Invalid=5742, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:44:12,526 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1854 mSDsluCounter, 4692 mSDsCounter, 0 mSdLazyCounter, 2653 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:12,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 5084 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2653 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:44:12,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16375 states. [2022-09-16 10:44:12,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16375 to 11523. [2022-09-16 10:44:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11523 states, 11477 states have (on average 2.121895965844733) internal successors, (24353), 11522 states have internal predecessors, (24353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11523 states to 11523 states and 24353 transitions. [2022-09-16 10:44:12,749 INFO L78 Accepts]: Start accepts. Automaton has 11523 states and 24353 transitions. Word has length 76 [2022-09-16 10:44:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:12,749 INFO L495 AbstractCegarLoop]: Abstraction has 11523 states and 24353 transitions. [2022-09-16 10:44:12,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 11523 states and 24353 transitions. [2022-09-16 10:44:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:12,752 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:12,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:12,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-09-16 10:44:12,752 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1087670565, now seen corresponding path program 18 times [2022-09-16 10:44:12,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:12,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228471317] [2022-09-16 10:44:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:12,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228471317] [2022-09-16 10:44:12,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228471317] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:12,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203235302] [2022-09-16 10:44:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:12,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:12,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:12,987 INFO L87 Difference]: Start difference. First operand 11523 states and 24353 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:17,252 INFO L93 Difference]: Finished difference Result 15906 states and 33265 transitions. [2022-09-16 10:44:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-16 10:44:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:17,273 INFO L225 Difference]: With dead ends: 15906 [2022-09-16 10:44:17,274 INFO L226 Difference]: Without dead ends: 15906 [2022-09-16 10:44:17,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1964 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2775, Invalid=7527, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:44:17,274 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1926 mSDsluCounter, 5509 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:17,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 5991 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:44:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15906 states. [2022-09-16 10:44:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15906 to 11499. [2022-09-16 10:44:17,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 11453 states have (on average 2.1220640880118746) internal successors, (24304), 11498 states have internal predecessors, (24304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 24304 transitions. [2022-09-16 10:44:17,423 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 24304 transitions. Word has length 76 [2022-09-16 10:44:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:17,424 INFO L495 AbstractCegarLoop]: Abstraction has 11499 states and 24304 transitions. [2022-09-16 10:44:17,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 24304 transitions. [2022-09-16 10:44:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:17,426 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:17,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:17,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-09-16 10:44:17,426 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:17,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:17,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1144079623, now seen corresponding path program 19 times [2022-09-16 10:44:17,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:17,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764786156] [2022-09-16 10:44:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:17,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:17,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:17,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764786156] [2022-09-16 10:44:17,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764786156] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:17,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:17,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961775751] [2022-09-16 10:44:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:17,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:17,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:17,601 INFO L87 Difference]: Start difference. First operand 11499 states and 24304 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:20,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:20,055 INFO L93 Difference]: Finished difference Result 15269 states and 31977 transitions. [2022-09-16 10:44:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:44:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:20,078 INFO L225 Difference]: With dead ends: 15269 [2022-09-16 10:44:20,078 INFO L226 Difference]: Without dead ends: 15269 [2022-09-16 10:44:20,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1490, Invalid=4210, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:44:20,079 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1922 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:20,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 4164 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:44:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15269 states. [2022-09-16 10:44:20,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15269 to 11484. [2022-09-16 10:44:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11484 states, 11438 states have (on average 2.1222241650638223) internal successors, (24274), 11483 states have internal predecessors, (24274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11484 states to 11484 states and 24274 transitions. [2022-09-16 10:44:20,237 INFO L78 Accepts]: Start accepts. Automaton has 11484 states and 24274 transitions. Word has length 76 [2022-09-16 10:44:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:20,237 INFO L495 AbstractCegarLoop]: Abstraction has 11484 states and 24274 transitions. [2022-09-16 10:44:20,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11484 states and 24274 transitions. [2022-09-16 10:44:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:20,239 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:20,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:20,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-09-16 10:44:20,240 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:20,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1499504475, now seen corresponding path program 20 times [2022-09-16 10:44:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:20,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900899974] [2022-09-16 10:44:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:20,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900899974] [2022-09-16 10:44:20,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900899974] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:20,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:20,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363197588] [2022-09-16 10:44:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:20,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:20,547 INFO L87 Difference]: Start difference. First operand 11484 states and 24274 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:24,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:24,359 INFO L93 Difference]: Finished difference Result 16155 states and 33801 transitions. [2022-09-16 10:44:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-16 10:44:24,359 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:24,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:24,384 INFO L225 Difference]: With dead ends: 16155 [2022-09-16 10:44:24,385 INFO L226 Difference]: Without dead ends: 16155 [2022-09-16 10:44:24,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1851, Invalid=5121, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:44:24,386 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1939 mSDsluCounter, 4752 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:24,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 5162 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:44:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16155 states. [2022-09-16 10:44:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16155 to 11492. [2022-09-16 10:44:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11492 states, 11446 states have (on average 2.1221387384239034) internal successors, (24290), 11491 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11492 states to 11492 states and 24290 transitions. [2022-09-16 10:44:24,557 INFO L78 Accepts]: Start accepts. Automaton has 11492 states and 24290 transitions. Word has length 76 [2022-09-16 10:44:24,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:24,557 INFO L495 AbstractCegarLoop]: Abstraction has 11492 states and 24290 transitions. [2022-09-16 10:44:24,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 11492 states and 24290 transitions. [2022-09-16 10:44:24,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:24,559 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:24,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:24,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-09-16 10:44:24,560 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:24,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:24,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1384353321, now seen corresponding path program 21 times [2022-09-16 10:44:24,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:24,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54557524] [2022-09-16 10:44:24,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:24,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:24,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54557524] [2022-09-16 10:44:24,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54557524] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:24,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:24,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:24,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648457587] [2022-09-16 10:44:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:24,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:24,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:24,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:24,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:24,740 INFO L87 Difference]: Start difference. First operand 11492 states and 24290 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:28,070 INFO L93 Difference]: Finished difference Result 16283 states and 34047 transitions. [2022-09-16 10:44:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:44:28,071 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:28,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:28,094 INFO L225 Difference]: With dead ends: 16283 [2022-09-16 10:44:28,094 INFO L226 Difference]: Without dead ends: 16283 [2022-09-16 10:44:28,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1889, Invalid=5251, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:44:28,096 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1864 mSDsluCounter, 4457 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:28,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 4853 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:44:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2022-09-16 10:44:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 11506. [2022-09-16 10:44:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11506 states, 11460 states have (on average 2.1220767888307157) internal successors, (24319), 11505 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11506 states to 11506 states and 24319 transitions. [2022-09-16 10:44:28,252 INFO L78 Accepts]: Start accepts. Automaton has 11506 states and 24319 transitions. Word has length 76 [2022-09-16 10:44:28,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:28,252 INFO L495 AbstractCegarLoop]: Abstraction has 11506 states and 24319 transitions. [2022-09-16 10:44:28,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 11506 states and 24319 transitions. [2022-09-16 10:44:28,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:28,254 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:28,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:28,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-09-16 10:44:28,255 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:28,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 510828453, now seen corresponding path program 22 times [2022-09-16 10:44:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:28,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795304541] [2022-09-16 10:44:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:28,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:28,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:28,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795304541] [2022-09-16 10:44:28,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795304541] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:28,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:28,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101448749] [2022-09-16 10:44:28,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:28,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:28,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:28,570 INFO L87 Difference]: Start difference. First operand 11506 states and 24319 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:34,756 INFO L93 Difference]: Finished difference Result 15814 states and 33081 transitions. [2022-09-16 10:44:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-09-16 10:44:34,757 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:34,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:34,781 INFO L225 Difference]: With dead ends: 15814 [2022-09-16 10:44:34,781 INFO L226 Difference]: Without dead ends: 15814 [2022-09-16 10:44:34,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1999 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2829, Invalid=7677, Unknown=0, NotChecked=0, Total=10506 [2022-09-16 10:44:34,782 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2205 mSDsluCounter, 4981 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 5456 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:34,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 5456 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:44:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15814 states. [2022-09-16 10:44:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15814 to 11483. [2022-09-16 10:44:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11483 states, 11437 states have (on average 2.1222348517968) internal successors, (24272), 11482 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11483 states to 11483 states and 24272 transitions. [2022-09-16 10:44:34,949 INFO L78 Accepts]: Start accepts. Automaton has 11483 states and 24272 transitions. Word has length 76 [2022-09-16 10:44:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:34,950 INFO L495 AbstractCegarLoop]: Abstraction has 11483 states and 24272 transitions. [2022-09-16 10:44:34,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 11483 states and 24272 transitions. [2022-09-16 10:44:34,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:34,952 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:34,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:34,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-09-16 10:44:34,952 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:34,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:34,952 INFO L85 PathProgramCache]: Analyzing trace with hash 358803911, now seen corresponding path program 23 times [2022-09-16 10:44:34,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:34,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976904062] [2022-09-16 10:44:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:34,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:35,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:35,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976904062] [2022-09-16 10:44:35,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976904062] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:35,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:35,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888618529] [2022-09-16 10:44:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:35,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:35,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:35,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:35,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:35,240 INFO L87 Difference]: Start difference. First operand 11483 states and 24272 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:37,263 INFO L93 Difference]: Finished difference Result 15301 states and 32057 transitions. [2022-09-16 10:44:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:44:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:37,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:37,286 INFO L225 Difference]: With dead ends: 15301 [2022-09-16 10:44:37,287 INFO L226 Difference]: Without dead ends: 15301 [2022-09-16 10:44:37,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1058, Invalid=3364, Unknown=0, NotChecked=0, Total=4422 [2022-09-16 10:44:37,287 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1971 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:37,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 4445 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:44:37,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15301 states. [2022-09-16 10:44:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15301 to 11484. [2022-09-16 10:44:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11484 states, 11438 states have (on average 2.1222241650638223) internal successors, (24274), 11483 states have internal predecessors, (24274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11484 states to 11484 states and 24274 transitions. [2022-09-16 10:44:37,438 INFO L78 Accepts]: Start accepts. Automaton has 11484 states and 24274 transitions. Word has length 76 [2022-09-16 10:44:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:37,438 INFO L495 AbstractCegarLoop]: Abstraction has 11484 states and 24274 transitions. [2022-09-16 10:44:37,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 11484 states and 24274 transitions. [2022-09-16 10:44:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:37,440 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:37,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:37,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-09-16 10:44:37,441 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1052305589, now seen corresponding path program 24 times [2022-09-16 10:44:37,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:37,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20128148] [2022-09-16 10:44:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:37,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:37,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20128148] [2022-09-16 10:44:37,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20128148] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:37,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:37,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532768535] [2022-09-16 10:44:37,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:37,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:37,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:37,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:37,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:37,623 INFO L87 Difference]: Start difference. First operand 11484 states and 24274 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:40,241 INFO L93 Difference]: Finished difference Result 15946 states and 33374 transitions. [2022-09-16 10:44:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:44:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:40,263 INFO L225 Difference]: With dead ends: 15946 [2022-09-16 10:44:40,263 INFO L226 Difference]: Without dead ends: 15946 [2022-09-16 10:44:40,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1316, Invalid=3940, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:44:40,264 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1745 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:40,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 4968 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:44:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15946 states. [2022-09-16 10:44:40,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15946 to 11498. [2022-09-16 10:44:40,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11498 states, 11452 states have (on average 2.12216206776109) internal successors, (24303), 11497 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11498 states to 11498 states and 24303 transitions. [2022-09-16 10:44:40,416 INFO L78 Accepts]: Start accepts. Automaton has 11498 states and 24303 transitions. Word has length 76 [2022-09-16 10:44:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:40,416 INFO L495 AbstractCegarLoop]: Abstraction has 11498 states and 24303 transitions. [2022-09-16 10:44:40,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 11498 states and 24303 transitions. [2022-09-16 10:44:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:40,418 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:40,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:40,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-09-16 10:44:40,419 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:40,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:40,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1925830457, now seen corresponding path program 25 times [2022-09-16 10:44:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:40,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232440554] [2022-09-16 10:44:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:40,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:40,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:40,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232440554] [2022-09-16 10:44:40,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232440554] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:40,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:40,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:40,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441317665] [2022-09-16 10:44:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:40,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:40,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:40,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:40,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:40,732 INFO L87 Difference]: Start difference. First operand 11498 states and 24303 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:45,386 INFO L93 Difference]: Finished difference Result 15634 states and 32731 transitions. [2022-09-16 10:44:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-09-16 10:44:45,387 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:45,409 INFO L225 Difference]: With dead ends: 15634 [2022-09-16 10:44:45,409 INFO L226 Difference]: Without dead ends: 15634 [2022-09-16 10:44:45,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2945, Invalid=7975, Unknown=0, NotChecked=0, Total=10920 [2022-09-16 10:44:45,410 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2114 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 4425 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:45,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 4425 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:44:45,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15634 states. [2022-09-16 10:44:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15634 to 11483. [2022-09-16 10:44:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11483 states, 11437 states have (on average 2.1222348517968) internal successors, (24272), 11482 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11483 states to 11483 states and 24272 transitions. [2022-09-16 10:44:45,569 INFO L78 Accepts]: Start accepts. Automaton has 11483 states and 24272 transitions. Word has length 76 [2022-09-16 10:44:45,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:45,569 INFO L495 AbstractCegarLoop]: Abstraction has 11483 states and 24272 transitions. [2022-09-16 10:44:45,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 11483 states and 24272 transitions. [2022-09-16 10:44:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:45,571 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:45,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:45,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-09-16 10:44:45,571 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:45,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1573427197, now seen corresponding path program 26 times [2022-09-16 10:44:45,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:45,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407847496] [2022-09-16 10:44:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:45,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:45,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:45,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407847496] [2022-09-16 10:44:45,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407847496] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:45,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:45,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524726860] [2022-09-16 10:44:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:45,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:45,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:45,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:45,820 INFO L87 Difference]: Start difference. First operand 11483 states and 24272 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:47,687 INFO L93 Difference]: Finished difference Result 15026 states and 31489 transitions. [2022-09-16 10:44:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-09-16 10:44:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:47,713 INFO L225 Difference]: With dead ends: 15026 [2022-09-16 10:44:47,713 INFO L226 Difference]: Without dead ends: 15026 [2022-09-16 10:44:47,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=918, Invalid=3114, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:44:47,714 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 2025 mSDsluCounter, 3661 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:47,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 4007 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:44:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15026 states. [2022-09-16 10:44:47,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15026 to 11497. [2022-09-16 10:44:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11497 states, 11451 states have (on average 2.122172736005589) internal successors, (24301), 11496 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11497 states to 11497 states and 24301 transitions. [2022-09-16 10:44:47,964 INFO L78 Accepts]: Start accepts. Automaton has 11497 states and 24301 transitions. Word has length 76 [2022-09-16 10:44:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:47,965 INFO L495 AbstractCegarLoop]: Abstraction has 11497 states and 24301 transitions. [2022-09-16 10:44:47,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 11497 states and 24301 transitions. [2022-09-16 10:44:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:47,967 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:47,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:47,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-09-16 10:44:47,967 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:47,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 699902329, now seen corresponding path program 27 times [2022-09-16 10:44:47,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:47,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872476097] [2022-09-16 10:44:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:47,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:48,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872476097] [2022-09-16 10:44:48,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872476097] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:48,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898292001] [2022-09-16 10:44:48,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:48,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:48,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:48,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:48,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:48,190 INFO L87 Difference]: Start difference. First operand 11497 states and 24301 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:52,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:52,891 INFO L93 Difference]: Finished difference Result 15277 states and 31997 transitions. [2022-09-16 10:44:52,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-09-16 10:44:52,891 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:52,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:52,913 INFO L225 Difference]: With dead ends: 15277 [2022-09-16 10:44:52,913 INFO L226 Difference]: Without dead ends: 15277 [2022-09-16 10:44:52,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2157 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3005, Invalid=8337, Unknown=0, NotChecked=0, Total=11342 [2022-09-16 10:44:52,914 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1861 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 5011 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:52,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 5011 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:44:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15277 states. [2022-09-16 10:44:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15277 to 11119. [2022-09-16 10:44:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11119 states, 11073 states have (on average 2.1248080917547187) internal successors, (23528), 11118 states have internal predecessors, (23528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11119 states to 11119 states and 23528 transitions. [2022-09-16 10:44:53,072 INFO L78 Accepts]: Start accepts. Automaton has 11119 states and 23528 transitions. Word has length 76 [2022-09-16 10:44:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:53,072 INFO L495 AbstractCegarLoop]: Abstraction has 11119 states and 23528 transitions. [2022-09-16 10:44:53,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 11119 states and 23528 transitions. [2022-09-16 10:44:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:44:53,074 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:53,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:53,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-09-16 10:44:53,074 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:53,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1366940397, now seen corresponding path program 28 times [2022-09-16 10:44:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:53,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169236283] [2022-09-16 10:44:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:53,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169236283] [2022-09-16 10:44:53,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169236283] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:53,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:53,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510201676] [2022-09-16 10:44:53,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:53,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:53,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:53,274 INFO L87 Difference]: Start difference. First operand 11119 states and 23528 transitions. Second operand has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:57,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:57,168 INFO L93 Difference]: Finished difference Result 14312 states and 30018 transitions. [2022-09-16 10:44:57,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-16 10:44:57,168 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-09-16 10:44:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:57,189 INFO L225 Difference]: With dead ends: 14312 [2022-09-16 10:44:57,189 INFO L226 Difference]: Without dead ends: 14312 [2022-09-16 10:44:57,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2103 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2766, Invalid=7536, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:44:57,191 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2109 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:57,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 3362 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:44:57,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14312 states. [2022-09-16 10:44:57,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14312 to 11052. [2022-09-16 10:44:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11052 states, 11006 states have (on average 2.125204433945121) internal successors, (23390), 11051 states have internal predecessors, (23390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11052 states to 11052 states and 23390 transitions. [2022-09-16 10:44:57,395 INFO L78 Accepts]: Start accepts. Automaton has 11052 states and 23390 transitions. Word has length 76 [2022-09-16 10:44:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:57,396 INFO L495 AbstractCegarLoop]: Abstraction has 11052 states and 23390 transitions. [2022-09-16 10:44:57,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 11052 states and 23390 transitions. [2022-09-16 10:44:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:44:57,398 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:57,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-09-16 10:44:57,398 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:57,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1329272220, now seen corresponding path program 1 times [2022-09-16 10:44:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:57,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689826237] [2022-09-16 10:44:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:57,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:57,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689826237] [2022-09-16 10:44:57,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689826237] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:57,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:57,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:44:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422906525] [2022-09-16 10:44:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:57,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:44:57,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:44:57,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:44:57,600 INFO L87 Difference]: Start difference. First operand 11052 states and 23390 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:00,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:00,746 INFO L93 Difference]: Finished difference Result 14857 states and 31129 transitions. [2022-09-16 10:45:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-16 10:45:00,746 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:00,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:00,769 INFO L225 Difference]: With dead ends: 14857 [2022-09-16 10:45:00,769 INFO L226 Difference]: Without dead ends: 14857 [2022-09-16 10:45:00,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1916, Invalid=5056, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:45:00,770 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1996 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:00,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 3919 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:45:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14857 states. [2022-09-16 10:45:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14857 to 11790. [2022-09-16 10:45:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11790 states, 11744 states have (on average 2.119124659400545) internal successors, (24887), 11789 states have internal predecessors, (24887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11790 states to 11790 states and 24887 transitions. [2022-09-16 10:45:00,994 INFO L78 Accepts]: Start accepts. Automaton has 11790 states and 24887 transitions. Word has length 77 [2022-09-16 10:45:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:00,994 INFO L495 AbstractCegarLoop]: Abstraction has 11790 states and 24887 transitions. [2022-09-16 10:45:00,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 11790 states and 24887 transitions. [2022-09-16 10:45:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:00,997 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:00,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:00,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-09-16 10:45:00,997 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash 269901352, now seen corresponding path program 2 times [2022-09-16 10:45:00,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:00,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143518237] [2022-09-16 10:45:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:01,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:01,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143518237] [2022-09-16 10:45:01,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143518237] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:01,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:01,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:01,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010563302] [2022-09-16 10:45:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:01,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:01,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:01,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:01,249 INFO L87 Difference]: Start difference. First operand 11790 states and 24887 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:05,956 INFO L93 Difference]: Finished difference Result 16324 states and 34108 transitions. [2022-09-16 10:45:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-09-16 10:45:05,956 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:05,985 INFO L225 Difference]: With dead ends: 16324 [2022-09-16 10:45:05,986 INFO L226 Difference]: Without dead ends: 16324 [2022-09-16 10:45:05,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2209, Invalid=5801, Unknown=0, NotChecked=0, Total=8010 [2022-09-16 10:45:05,987 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1947 mSDsluCounter, 4961 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 5434 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:05,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 5434 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:45:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16324 states. [2022-09-16 10:45:06,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16324 to 11793. [2022-09-16 10:45:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11793 states, 11747 states have (on average 2.119094236826424) internal successors, (24893), 11792 states have internal predecessors, (24893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11793 states to 11793 states and 24893 transitions. [2022-09-16 10:45:06,187 INFO L78 Accepts]: Start accepts. Automaton has 11793 states and 24893 transitions. Word has length 77 [2022-09-16 10:45:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:06,187 INFO L495 AbstractCegarLoop]: Abstraction has 11793 states and 24893 transitions. [2022-09-16 10:45:06,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 11793 states and 24893 transitions. [2022-09-16 10:45:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:06,190 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:06,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:06,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-09-16 10:45:06,191 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:06,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1089142940, now seen corresponding path program 3 times [2022-09-16 10:45:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:06,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134017705] [2022-09-16 10:45:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:06,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:06,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134017705] [2022-09-16 10:45:06,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134017705] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:06,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:06,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706549869] [2022-09-16 10:45:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:06,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:06,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:06,556 INFO L87 Difference]: Start difference. First operand 11793 states and 24893 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:10,623 INFO L93 Difference]: Finished difference Result 16189 states and 33838 transitions. [2022-09-16 10:45:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-16 10:45:10,624 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:10,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:10,647 INFO L225 Difference]: With dead ends: 16189 [2022-09-16 10:45:10,647 INFO L226 Difference]: Without dead ends: 16189 [2022-09-16 10:45:10,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2262, Invalid=5928, Unknown=0, NotChecked=0, Total=8190 [2022-09-16 10:45:10,648 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 2189 mSDsluCounter, 5573 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:10,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 6030 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16189 states. [2022-09-16 10:45:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16189 to 11794. [2022-09-16 10:45:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11794 states, 11748 states have (on average 2.119084099421178) internal successors, (24895), 11793 states have internal predecessors, (24895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11794 states to 11794 states and 24895 transitions. [2022-09-16 10:45:10,817 INFO L78 Accepts]: Start accepts. Automaton has 11794 states and 24895 transitions. Word has length 77 [2022-09-16 10:45:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:10,817 INFO L495 AbstractCegarLoop]: Abstraction has 11794 states and 24895 transitions. [2022-09-16 10:45:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 11794 states and 24895 transitions. [2022-09-16 10:45:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:10,820 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:10,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:10,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-09-16 10:45:10,820 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:10,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1182060922, now seen corresponding path program 4 times [2022-09-16 10:45:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:10,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648428996] [2022-09-16 10:45:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:11,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:11,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648428996] [2022-09-16 10:45:11,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648428996] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:11,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:11,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:11,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449041865] [2022-09-16 10:45:11,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:11,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:11,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:11,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:11,030 INFO L87 Difference]: Start difference. First operand 11794 states and 24895 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:16,648 INFO L93 Difference]: Finished difference Result 16099 states and 33658 transitions. [2022-09-16 10:45:16,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-16 10:45:16,649 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:16,673 INFO L225 Difference]: With dead ends: 16099 [2022-09-16 10:45:16,673 INFO L226 Difference]: Without dead ends: 16099 [2022-09-16 10:45:16,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2312, Invalid=6060, Unknown=0, NotChecked=0, Total=8372 [2022-09-16 10:45:16,674 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 2272 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5026 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:16,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 5026 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:45:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16099 states. [2022-09-16 10:45:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16099 to 11795. [2022-09-16 10:45:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11795 states, 11749 states have (on average 2.119073963741595) internal successors, (24897), 11794 states have internal predecessors, (24897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11795 states to 11795 states and 24897 transitions. [2022-09-16 10:45:16,848 INFO L78 Accepts]: Start accepts. Automaton has 11795 states and 24897 transitions. Word has length 77 [2022-09-16 10:45:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:16,848 INFO L495 AbstractCegarLoop]: Abstraction has 11795 states and 24897 transitions. [2022-09-16 10:45:16,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 11795 states and 24897 transitions. [2022-09-16 10:45:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:16,851 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:16,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:16,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-09-16 10:45:16,851 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:16,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1528789336, now seen corresponding path program 5 times [2022-09-16 10:45:16,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:16,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199853379] [2022-09-16 10:45:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:16,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:17,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:17,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199853379] [2022-09-16 10:45:17,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199853379] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:17,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:17,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:17,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350202557] [2022-09-16 10:45:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:17,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:17,181 INFO L87 Difference]: Start difference. First operand 11795 states and 24897 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:22,355 INFO L93 Difference]: Finished difference Result 16117 states and 33709 transitions. [2022-09-16 10:45:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-16 10:45:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:22,381 INFO L225 Difference]: With dead ends: 16117 [2022-09-16 10:45:22,381 INFO L226 Difference]: Without dead ends: 16117 [2022-09-16 10:45:22,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1577 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2444, Invalid=6486, Unknown=0, NotChecked=0, Total=8930 [2022-09-16 10:45:22,382 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1895 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 5048 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:22,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 5048 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:45:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16117 states. [2022-09-16 10:45:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16117 to 11803. [2022-09-16 10:45:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11803 states, 11757 states have (on average 2.1189929403759464) internal successors, (24913), 11802 states have internal predecessors, (24913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11803 states to 11803 states and 24913 transitions. [2022-09-16 10:45:22,558 INFO L78 Accepts]: Start accepts. Automaton has 11803 states and 24913 transitions. Word has length 77 [2022-09-16 10:45:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:22,558 INFO L495 AbstractCegarLoop]: Abstraction has 11803 states and 24913 transitions. [2022-09-16 10:45:22,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 11803 states and 24913 transitions. [2022-09-16 10:45:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:22,561 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:22,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:22,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-09-16 10:45:22,561 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:22,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1971456420, now seen corresponding path program 6 times [2022-09-16 10:45:22,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:22,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994164493] [2022-09-16 10:45:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:22,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:22,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994164493] [2022-09-16 10:45:22,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994164493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:22,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:22,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262083288] [2022-09-16 10:45:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:22,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:22,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:22,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:22,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:22,856 INFO L87 Difference]: Start difference. First operand 11803 states and 24913 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:27,096 INFO L93 Difference]: Finished difference Result 15795 states and 33045 transitions. [2022-09-16 10:45:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-09-16 10:45:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:27,122 INFO L225 Difference]: With dead ends: 15795 [2022-09-16 10:45:27,123 INFO L226 Difference]: Without dead ends: 15795 [2022-09-16 10:45:27,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1609 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2482, Invalid=6638, Unknown=0, NotChecked=0, Total=9120 [2022-09-16 10:45:27,124 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1889 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:27,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 5404 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15795 states. [2022-09-16 10:45:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15795 to 11817. [2022-09-16 10:45:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11817 states, 11771 states have (on average 2.1189363690425624) internal successors, (24942), 11816 states have internal predecessors, (24942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:27,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11817 states to 11817 states and 24942 transitions. [2022-09-16 10:45:27,312 INFO L78 Accepts]: Start accepts. Automaton has 11817 states and 24942 transitions. Word has length 77 [2022-09-16 10:45:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:27,312 INFO L495 AbstractCegarLoop]: Abstraction has 11817 states and 24942 transitions. [2022-09-16 10:45:27,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 11817 states and 24942 transitions. [2022-09-16 10:45:27,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:27,315 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:27,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-09-16 10:45:27,315 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash 661989288, now seen corresponding path program 7 times [2022-09-16 10:45:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:27,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128902061] [2022-09-16 10:45:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:27,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:27,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128902061] [2022-09-16 10:45:27,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128902061] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:27,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:27,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:27,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502955582] [2022-09-16 10:45:27,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:27,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:27,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:27,514 INFO L87 Difference]: Start difference. First operand 11817 states and 24942 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:31,248 INFO L93 Difference]: Finished difference Result 15168 states and 31758 transitions. [2022-09-16 10:45:31,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-09-16 10:45:31,248 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:31,272 INFO L225 Difference]: With dead ends: 15168 [2022-09-16 10:45:31,272 INFO L226 Difference]: Without dead ends: 15168 [2022-09-16 10:45:31,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1627 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2327, Invalid=6229, Unknown=0, NotChecked=0, Total=8556 [2022-09-16 10:45:31,273 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 2297 mSDsluCounter, 3990 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 4330 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:31,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 4330 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:45:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15168 states. [2022-09-16 10:45:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15168 to 11822. [2022-09-16 10:45:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11822 states, 11776 states have (on average 2.1188858695652173) internal successors, (24952), 11821 states have internal predecessors, (24952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11822 states to 11822 states and 24952 transitions. [2022-09-16 10:45:31,442 INFO L78 Accepts]: Start accepts. Automaton has 11822 states and 24952 transitions. Word has length 77 [2022-09-16 10:45:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:31,442 INFO L495 AbstractCegarLoop]: Abstraction has 11822 states and 24952 transitions. [2022-09-16 10:45:31,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 11822 states and 24952 transitions. [2022-09-16 10:45:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:31,444 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:31,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:31,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-09-16 10:45:31,444 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash -995292866, now seen corresponding path program 8 times [2022-09-16 10:45:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:31,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176960925] [2022-09-16 10:45:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:31,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:31,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176960925] [2022-09-16 10:45:31,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176960925] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:31,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:31,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413754320] [2022-09-16 10:45:31,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:31,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:31,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:31,634 INFO L87 Difference]: Start difference. First operand 11822 states and 24952 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:34,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:34,956 INFO L93 Difference]: Finished difference Result 15762 states and 32966 transitions. [2022-09-16 10:45:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-09-16 10:45:34,957 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:34,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:34,983 INFO L225 Difference]: With dead ends: 15762 [2022-09-16 10:45:34,983 INFO L226 Difference]: Without dead ends: 15762 [2022-09-16 10:45:34,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1788, Invalid=4854, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:45:34,984 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1806 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:34,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 4962 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:45:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15762 states. [2022-09-16 10:45:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15762 to 11771. [2022-09-16 10:45:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11771 states, 11725 states have (on average 2.1194029850746268) internal successors, (24850), 11770 states have internal predecessors, (24850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11771 states to 11771 states and 24850 transitions. [2022-09-16 10:45:35,168 INFO L78 Accepts]: Start accepts. Automaton has 11771 states and 24850 transitions. Word has length 77 [2022-09-16 10:45:35,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:35,168 INFO L495 AbstractCegarLoop]: Abstraction has 11771 states and 24850 transitions. [2022-09-16 10:45:35,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 11771 states and 24850 transitions. [2022-09-16 10:45:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:35,171 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:35,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:35,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-09-16 10:45:35,171 INFO L420 AbstractCegarLoop]: === Iteration 173 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:35,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1940630138, now seen corresponding path program 9 times [2022-09-16 10:45:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:35,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819089064] [2022-09-16 10:45:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:35,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:35,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819089064] [2022-09-16 10:45:35,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819089064] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:35,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:35,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:35,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870868293] [2022-09-16 10:45:35,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:35,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:35,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:35,399 INFO L87 Difference]: Start difference. First operand 11771 states and 24850 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:39,073 INFO L93 Difference]: Finished difference Result 16722 states and 34923 transitions. [2022-09-16 10:45:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:45:39,073 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:39,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:39,098 INFO L225 Difference]: With dead ends: 16722 [2022-09-16 10:45:39,098 INFO L226 Difference]: Without dead ends: 16722 [2022-09-16 10:45:39,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2076, Invalid=5580, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:45:39,099 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 1895 mSDsluCounter, 5058 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:39,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 5522 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16722 states. [2022-09-16 10:45:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16722 to 11772. [2022-09-16 10:45:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11772 states, 11726 states have (on average 2.1193928023196316) internal successors, (24852), 11771 states have internal predecessors, (24852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11772 states to 11772 states and 24852 transitions. [2022-09-16 10:45:39,280 INFO L78 Accepts]: Start accepts. Automaton has 11772 states and 24852 transitions. Word has length 77 [2022-09-16 10:45:39,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:39,281 INFO L495 AbstractCegarLoop]: Abstraction has 11772 states and 24852 transitions. [2022-09-16 10:45:39,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 11772 states and 24852 transitions. [2022-09-16 10:45:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:39,283 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:39,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:39,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-09-16 10:45:39,283 INFO L420 AbstractCegarLoop]: === Iteration 174 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1847712156, now seen corresponding path program 10 times [2022-09-16 10:45:39,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:39,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705382307] [2022-09-16 10:45:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:39,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:39,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:39,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705382307] [2022-09-16 10:45:39,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705382307] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:39,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:39,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081588453] [2022-09-16 10:45:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:39,494 INFO L87 Difference]: Start difference. First operand 11772 states and 24852 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:43,227 INFO L93 Difference]: Finished difference Result 16632 states and 34743 transitions. [2022-09-16 10:45:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:45:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:43,254 INFO L225 Difference]: With dead ends: 16632 [2022-09-16 10:45:43,254 INFO L226 Difference]: Without dead ends: 16632 [2022-09-16 10:45:43,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2126, Invalid=5706, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:45:43,255 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1875 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:43,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 5311 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16632 states. [2022-09-16 10:45:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16632 to 11773. [2022-09-16 10:45:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11773 states, 11727 states have (on average 2.1193826213012708) internal successors, (24854), 11772 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 24854 transitions. [2022-09-16 10:45:43,444 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 24854 transitions. Word has length 77 [2022-09-16 10:45:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:43,444 INFO L495 AbstractCegarLoop]: Abstraction has 11773 states and 24854 transitions. [2022-09-16 10:45:43,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 24854 transitions. [2022-09-16 10:45:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:43,447 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:43,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:43,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-09-16 10:45:43,447 INFO L420 AbstractCegarLoop]: === Iteration 175 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1500983742, now seen corresponding path program 11 times [2022-09-16 10:45:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:43,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187175252] [2022-09-16 10:45:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:43,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:43,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:43,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187175252] [2022-09-16 10:45:43,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187175252] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:43,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:43,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:43,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746384518] [2022-09-16 10:45:43,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:43,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:43,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:43,673 INFO L87 Difference]: Start difference. First operand 11773 states and 24854 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:48,139 INFO L93 Difference]: Finished difference Result 16650 states and 34794 transitions. [2022-09-16 10:45:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-16 10:45:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:48,163 INFO L225 Difference]: With dead ends: 16650 [2022-09-16 10:45:48,163 INFO L226 Difference]: Without dead ends: 16650 [2022-09-16 10:45:48,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1477 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2258, Invalid=6114, Unknown=0, NotChecked=0, Total=8372 [2022-09-16 10:45:48,164 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 2196 mSDsluCounter, 4254 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:48,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 4667 Invalid, 2350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16650 states. [2022-09-16 10:45:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16650 to 11781. [2022-09-16 10:45:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 11735 states have (on average 2.1193012356199405) internal successors, (24870), 11780 states have internal predecessors, (24870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 24870 transitions. [2022-09-16 10:45:48,342 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 24870 transitions. Word has length 77 [2022-09-16 10:45:48,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:48,342 INFO L495 AbstractCegarLoop]: Abstraction has 11781 states and 24870 transitions. [2022-09-16 10:45:48,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:48,342 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 24870 transitions. [2022-09-16 10:45:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:48,345 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:48,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:48,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-09-16 10:45:48,345 INFO L420 AbstractCegarLoop]: === Iteration 176 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:48,345 INFO L85 PathProgramCache]: Analyzing trace with hash 706262202, now seen corresponding path program 12 times [2022-09-16 10:45:48,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203330111] [2022-09-16 10:45:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:48,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:48,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:48,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203330111] [2022-09-16 10:45:48,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203330111] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:48,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:48,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:48,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944711861] [2022-09-16 10:45:48,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:48,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:48,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:48,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:48,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:48,541 INFO L87 Difference]: Start difference. First operand 11781 states and 24870 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:53,292 INFO L93 Difference]: Finished difference Result 16697 states and 34876 transitions. [2022-09-16 10:45:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-09-16 10:45:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:53,320 INFO L225 Difference]: With dead ends: 16697 [2022-09-16 10:45:53,320 INFO L226 Difference]: Without dead ends: 16697 [2022-09-16 10:45:53,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1506 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2296, Invalid=6260, Unknown=0, NotChecked=0, Total=8556 [2022-09-16 10:45:53,321 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 2171 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4647 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:53,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4647 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16697 states. [2022-09-16 10:45:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16697 to 11795. [2022-09-16 10:45:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11795 states, 11749 states have (on average 2.119244190994978) internal successors, (24899), 11794 states have internal predecessors, (24899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11795 states to 11795 states and 24899 transitions. [2022-09-16 10:45:53,516 INFO L78 Accepts]: Start accepts. Automaton has 11795 states and 24899 transitions. Word has length 77 [2022-09-16 10:45:53,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:53,516 INFO L495 AbstractCegarLoop]: Abstraction has 11795 states and 24899 transitions. [2022-09-16 10:45:53,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 11795 states and 24899 transitions. [2022-09-16 10:45:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:53,519 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:53,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:53,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-09-16 10:45:53,520 INFO L420 AbstractCegarLoop]: === Iteration 177 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:53,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash -603204930, now seen corresponding path program 13 times [2022-09-16 10:45:53,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:53,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892342539] [2022-09-16 10:45:53,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:53,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:53,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892342539] [2022-09-16 10:45:53,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892342539] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:53,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:53,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292252651] [2022-09-16 10:45:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:53,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:53,815 INFO L87 Difference]: Start difference. First operand 11795 states and 24899 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:58,862 INFO L93 Difference]: Finished difference Result 16070 states and 33589 transitions. [2022-09-16 10:45:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-09-16 10:45:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:45:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:58,890 INFO L225 Difference]: With dead ends: 16070 [2022-09-16 10:45:58,890 INFO L226 Difference]: Without dead ends: 16070 [2022-09-16 10:45:58,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1901 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2695, Invalid=7205, Unknown=0, NotChecked=0, Total=9900 [2022-09-16 10:45:58,891 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2137 mSDsluCounter, 5635 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:58,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 6123 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:45:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16070 states. [2022-09-16 10:45:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16070 to 11768. [2022-09-16 10:45:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11768 states, 11722 states have (on average 2.1194335437638627) internal successors, (24844), 11767 states have internal predecessors, (24844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11768 states to 11768 states and 24844 transitions. [2022-09-16 10:45:59,074 INFO L78 Accepts]: Start accepts. Automaton has 11768 states and 24844 transitions. Word has length 77 [2022-09-16 10:45:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:59,074 INFO L495 AbstractCegarLoop]: Abstraction has 11768 states and 24844 transitions. [2022-09-16 10:45:59,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 11768 states and 24844 transitions. [2022-09-16 10:45:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:45:59,077 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:59,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:59,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-09-16 10:45:59,077 INFO L420 AbstractCegarLoop]: === Iteration 178 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1109180932, now seen corresponding path program 14 times [2022-09-16 10:45:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:59,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431346838] [2022-09-16 10:45:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:59,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:59,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:59,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431346838] [2022-09-16 10:45:59,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431346838] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:59,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:59,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:45:59,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972161262] [2022-09-16 10:45:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:59,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:45:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:45:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:45:59,271 INFO L87 Difference]: Start difference. First operand 11768 states and 24844 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:02,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:02,228 INFO L93 Difference]: Finished difference Result 15624 states and 32690 transitions. [2022-09-16 10:46:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-09-16 10:46:02,228 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:02,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:02,255 INFO L225 Difference]: With dead ends: 15624 [2022-09-16 10:46:02,255 INFO L226 Difference]: Without dead ends: 15624 [2022-09-16 10:46:02,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1638, Invalid=4524, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:46:02,256 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 2171 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:02,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4084 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:46:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15624 states. [2022-09-16 10:46:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15624 to 11717. [2022-09-16 10:46:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11717 states, 11671 states have (on average 2.1199554451203837) internal successors, (24742), 11716 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 24742 transitions. [2022-09-16 10:46:02,440 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 24742 transitions. Word has length 77 [2022-09-16 10:46:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:02,440 INFO L495 AbstractCegarLoop]: Abstraction has 11717 states and 24742 transitions. [2022-09-16 10:46:02,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 24742 transitions. [2022-09-16 10:46:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:02,442 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:02,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-09-16 10:46:02,443 INFO L420 AbstractCegarLoop]: === Iteration 179 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1202098914, now seen corresponding path program 15 times [2022-09-16 10:46:02,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474027734] [2022-09-16 10:46:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:02,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:02,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474027734] [2022-09-16 10:46:02,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474027734] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:02,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:02,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782201594] [2022-09-16 10:46:02,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:02,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:02,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:02,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:02,633 INFO L87 Difference]: Start difference. First operand 11717 states and 24742 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:06,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:06,121 INFO L93 Difference]: Finished difference Result 16493 states and 34465 transitions. [2022-09-16 10:46:06,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:46:06,121 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:06,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:06,149 INFO L225 Difference]: With dead ends: 16493 [2022-09-16 10:46:06,149 INFO L226 Difference]: Without dead ends: 16493 [2022-09-16 10:46:06,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1920, Invalid=5220, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:46:06,150 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1910 mSDsluCounter, 5044 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:06,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 5499 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:46:06,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16493 states. [2022-09-16 10:46:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16493 to 11718. [2022-09-16 10:46:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11718 states, 11672 states have (on average 2.1199451679232353) internal successors, (24744), 11717 states have internal predecessors, (24744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11718 states to 11718 states and 24744 transitions. [2022-09-16 10:46:06,340 INFO L78 Accepts]: Start accepts. Automaton has 11718 states and 24744 transitions. Word has length 77 [2022-09-16 10:46:06,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:06,340 INFO L495 AbstractCegarLoop]: Abstraction has 11718 states and 24744 transitions. [2022-09-16 10:46:06,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:06,340 INFO L276 IsEmpty]: Start isEmpty. Operand 11718 states and 24744 transitions. [2022-09-16 10:46:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:06,343 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:06,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-09-16 10:46:06,343 INFO L420 AbstractCegarLoop]: === Iteration 180 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:06,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1548827328, now seen corresponding path program 16 times [2022-09-16 10:46:06,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:06,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273193980] [2022-09-16 10:46:06,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:06,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:06,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:06,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:06,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273193980] [2022-09-16 10:46:06,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273193980] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:06,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:06,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666765592] [2022-09-16 10:46:06,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:06,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:06,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:06,543 INFO L87 Difference]: Start difference. First operand 11718 states and 24744 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:10,188 INFO L93 Difference]: Finished difference Result 16511 states and 34516 transitions. [2022-09-16 10:46:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:46:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:10,215 INFO L225 Difference]: With dead ends: 16511 [2022-09-16 10:46:10,216 INFO L226 Difference]: Without dead ends: 16511 [2022-09-16 10:46:10,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2052, Invalid=5604, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:46:10,216 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 2212 mSDsluCounter, 4251 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:10,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2212 Valid, 4661 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:46:10,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16511 states. [2022-09-16 10:46:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16511 to 11726. [2022-09-16 10:46:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11726 states, 11680 states have (on average 2.1198630136986303) internal successors, (24760), 11725 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:10,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11726 states to 11726 states and 24760 transitions. [2022-09-16 10:46:10,401 INFO L78 Accepts]: Start accepts. Automaton has 11726 states and 24760 transitions. Word has length 77 [2022-09-16 10:46:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:10,402 INFO L495 AbstractCegarLoop]: Abstraction has 11726 states and 24760 transitions. [2022-09-16 10:46:10,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 11726 states and 24760 transitions. [2022-09-16 10:46:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:10,404 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:10,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:10,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-09-16 10:46:10,405 INFO L420 AbstractCegarLoop]: === Iteration 181 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:10,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1951418428, now seen corresponding path program 17 times [2022-09-16 10:46:10,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:10,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869389608] [2022-09-16 10:46:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:10,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:10,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:10,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869389608] [2022-09-16 10:46:10,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869389608] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:10,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:10,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:10,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362165121] [2022-09-16 10:46:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:10,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:10,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:10,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:10,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:10,710 INFO L87 Difference]: Start difference. First operand 11726 states and 24760 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:15,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:15,352 INFO L93 Difference]: Finished difference Result 16558 states and 34598 transitions. [2022-09-16 10:46:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:46:15,352 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:15,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:15,378 INFO L225 Difference]: With dead ends: 16558 [2022-09-16 10:46:15,378 INFO L226 Difference]: Without dead ends: 16558 [2022-09-16 10:46:15,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2090, Invalid=5742, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:46:15,379 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1806 mSDsluCounter, 4703 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:15,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 5099 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:46:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16558 states. [2022-09-16 10:46:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16558 to 11740. [2022-09-16 10:46:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11740 states, 11694 states have (on average 2.1198050282196) internal successors, (24789), 11739 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11740 states to 11740 states and 24789 transitions. [2022-09-16 10:46:15,571 INFO L78 Accepts]: Start accepts. Automaton has 11740 states and 24789 transitions. Word has length 77 [2022-09-16 10:46:15,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:15,572 INFO L495 AbstractCegarLoop]: Abstraction has 11740 states and 24789 transitions. [2022-09-16 10:46:15,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 11740 states and 24789 transitions. [2022-09-16 10:46:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:15,574 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:15,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:15,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-09-16 10:46:15,575 INFO L420 AbstractCegarLoop]: === Iteration 182 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 641951296, now seen corresponding path program 18 times [2022-09-16 10:46:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:15,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937327843] [2022-09-16 10:46:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:15,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:15,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937327843] [2022-09-16 10:46:15,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937327843] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:15,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:15,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:15,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840130652] [2022-09-16 10:46:15,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:15,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:15,895 INFO L87 Difference]: Start difference. First operand 11740 states and 24789 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:21,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:21,703 INFO L93 Difference]: Finished difference Result 16135 states and 33725 transitions. [2022-09-16 10:46:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-16 10:46:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:21,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:21,731 INFO L225 Difference]: With dead ends: 16135 [2022-09-16 10:46:21,731 INFO L226 Difference]: Without dead ends: 16135 [2022-09-16 10:46:21,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1964 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2775, Invalid=7527, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:46:21,732 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 1836 mSDsluCounter, 4961 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 5444 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:21,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 5444 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16135 states. [2022-09-16 10:46:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16135 to 11716. [2022-09-16 10:46:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11716 states, 11670 states have (on average 2.1199657240788348) internal successors, (24740), 11715 states have internal predecessors, (24740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11716 states to 11716 states and 24740 transitions. [2022-09-16 10:46:21,922 INFO L78 Accepts]: Start accepts. Automaton has 11716 states and 24740 transitions. Word has length 77 [2022-09-16 10:46:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:21,922 INFO L495 AbstractCegarLoop]: Abstraction has 11716 states and 24740 transitions. [2022-09-16 10:46:21,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 11716 states and 24740 transitions. [2022-09-16 10:46:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:21,925 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:21,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:21,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-09-16 10:46:21,925 INFO L420 AbstractCegarLoop]: === Iteration 183 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:21,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1106730388, now seen corresponding path program 19 times [2022-09-16 10:46:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:21,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007250570] [2022-09-16 10:46:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:22,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:22,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007250570] [2022-09-16 10:46:22,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007250570] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:22,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:22,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:22,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514109689] [2022-09-16 10:46:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:22,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:22,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:22,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:22,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:22,185 INFO L87 Difference]: Start difference. First operand 11716 states and 24740 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:26,510 INFO L93 Difference]: Finished difference Result 15533 states and 32508 transitions. [2022-09-16 10:46:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:46:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:26,533 INFO L225 Difference]: With dead ends: 15533 [2022-09-16 10:46:26,533 INFO L226 Difference]: Without dead ends: 15533 [2022-09-16 10:46:26,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1490, Invalid=4210, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:46:26,534 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1867 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:26,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 4350 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:46:26,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15533 states. [2022-09-16 10:46:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15533 to 11701. [2022-09-16 10:46:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11701 states, 11655 states have (on average 2.12012012012012) internal successors, (24710), 11700 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11701 states to 11701 states and 24710 transitions. [2022-09-16 10:46:26,705 INFO L78 Accepts]: Start accepts. Automaton has 11701 states and 24710 transitions. Word has length 77 [2022-09-16 10:46:26,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:26,705 INFO L495 AbstractCegarLoop]: Abstraction has 11701 states and 24710 transitions. [2022-09-16 10:46:26,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:26,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11701 states and 24710 transitions. [2022-09-16 10:46:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:26,708 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:26,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-09-16 10:46:26,708 INFO L420 AbstractCegarLoop]: === Iteration 184 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash 760001974, now seen corresponding path program 20 times [2022-09-16 10:46:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:26,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574998615] [2022-09-16 10:46:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:27,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:27,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574998615] [2022-09-16 10:46:27,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574998615] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:27,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:27,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246338885] [2022-09-16 10:46:27,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:27,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:27,007 INFO L87 Difference]: Start difference. First operand 11701 states and 24710 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:32,174 INFO L93 Difference]: Finished difference Result 16419 states and 34332 transitions. [2022-09-16 10:46:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-16 10:46:32,175 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:32,202 INFO L225 Difference]: With dead ends: 16419 [2022-09-16 10:46:32,203 INFO L226 Difference]: Without dead ends: 16419 [2022-09-16 10:46:32,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1851, Invalid=5121, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:46:32,203 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1847 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 4967 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:32,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 4967 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16419 states. [2022-09-16 10:46:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16419 to 11709. [2022-09-16 10:46:32,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11709 states, 11663 states have (on average 2.120037726142502) internal successors, (24726), 11708 states have internal predecessors, (24726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11709 states to 11709 states and 24726 transitions. [2022-09-16 10:46:32,393 INFO L78 Accepts]: Start accepts. Automaton has 11709 states and 24726 transitions. Word has length 77 [2022-09-16 10:46:32,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:32,393 INFO L495 AbstractCegarLoop]: Abstraction has 11709 states and 24726 transitions. [2022-09-16 10:46:32,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 11709 states and 24726 transitions. [2022-09-16 10:46:32,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:32,396 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:32,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:32,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-09-16 10:46:32,396 INFO L420 AbstractCegarLoop]: === Iteration 185 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash -34719566, now seen corresponding path program 21 times [2022-09-16 10:46:32,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:32,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610516489] [2022-09-16 10:46:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:32,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:32,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:32,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610516489] [2022-09-16 10:46:32,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610516489] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:32,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:32,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:32,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651964312] [2022-09-16 10:46:32,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:32,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:32,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:32,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:32,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:32,706 INFO L87 Difference]: Start difference. First operand 11709 states and 24726 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:37,406 INFO L93 Difference]: Finished difference Result 16466 states and 34414 transitions. [2022-09-16 10:46:37,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:46:37,406 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:37,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:37,436 INFO L225 Difference]: With dead ends: 16466 [2022-09-16 10:46:37,436 INFO L226 Difference]: Without dead ends: 16466 [2022-09-16 10:46:37,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1889, Invalid=5251, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:46:37,437 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1845 mSDsluCounter, 4443 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:37,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 4844 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:46:37,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16466 states. [2022-09-16 10:46:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16466 to 11723. [2022-09-16 10:46:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11723 states, 11677 states have (on average 2.119979446775713) internal successors, (24755), 11722 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11723 states to 11723 states and 24755 transitions. [2022-09-16 10:46:37,631 INFO L78 Accepts]: Start accepts. Automaton has 11723 states and 24755 transitions. Word has length 77 [2022-09-16 10:46:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:37,632 INFO L495 AbstractCegarLoop]: Abstraction has 11723 states and 24755 transitions. [2022-09-16 10:46:37,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 11723 states and 24755 transitions. [2022-09-16 10:46:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:37,634 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:37,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:37,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-09-16 10:46:37,635 INFO L420 AbstractCegarLoop]: === Iteration 186 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1344186698, now seen corresponding path program 22 times [2022-09-16 10:46:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:37,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931916646] [2022-09-16 10:46:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:37,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:37,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:37,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931916646] [2022-09-16 10:46:37,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931916646] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:37,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:37,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465007687] [2022-09-16 10:46:37,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:37,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:37,861 INFO L87 Difference]: Start difference. First operand 11723 states and 24755 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:43,668 INFO L93 Difference]: Finished difference Result 16043 states and 33541 transitions. [2022-09-16 10:46:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-09-16 10:46:43,669 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:43,698 INFO L225 Difference]: With dead ends: 16043 [2022-09-16 10:46:43,698 INFO L226 Difference]: Without dead ends: 16043 [2022-09-16 10:46:43,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1999 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2829, Invalid=7677, Unknown=0, NotChecked=0, Total=10506 [2022-09-16 10:46:43,699 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1923 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:43,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 5351 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16043 states. [2022-09-16 10:46:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16043 to 11700. [2022-09-16 10:46:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11700 states, 11654 states have (on average 2.1201304273210915) internal successors, (24708), 11699 states have internal predecessors, (24708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:43,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11700 states to 11700 states and 24708 transitions. [2022-09-16 10:46:43,888 INFO L78 Accepts]: Start accepts. Automaton has 11700 states and 24708 transitions. Word has length 77 [2022-09-16 10:46:43,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:43,888 INFO L495 AbstractCegarLoop]: Abstraction has 11700 states and 24708 transitions. [2022-09-16 10:46:43,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:43,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11700 states and 24708 transitions. [2022-09-16 10:46:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:43,891 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:43,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:43,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-09-16 10:46:43,891 INFO L420 AbstractCegarLoop]: === Iteration 187 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:43,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1761980204, now seen corresponding path program 23 times [2022-09-16 10:46:43,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:43,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417518575] [2022-09-16 10:46:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:43,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:44,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417518575] [2022-09-16 10:46:44,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417518575] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:44,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:44,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008689379] [2022-09-16 10:46:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:44,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:44,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:44,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:44,197 INFO L87 Difference]: Start difference. First operand 11700 states and 24708 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:47,540 INFO L93 Difference]: Finished difference Result 15565 states and 32588 transitions. [2022-09-16 10:46:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:46:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:47,565 INFO L225 Difference]: With dead ends: 15565 [2022-09-16 10:46:47,565 INFO L226 Difference]: Without dead ends: 15565 [2022-09-16 10:46:47,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1058, Invalid=3364, Unknown=0, NotChecked=0, Total=4422 [2022-09-16 10:46:47,566 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1905 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:47,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 4865 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:46:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15565 states. [2022-09-16 10:46:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15565 to 11701. [2022-09-16 10:46:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11701 states, 11655 states have (on average 2.12012012012012) internal successors, (24710), 11700 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11701 states to 11701 states and 24710 transitions. [2022-09-16 10:46:47,733 INFO L78 Accepts]: Start accepts. Automaton has 11701 states and 24710 transitions. Word has length 77 [2022-09-16 10:46:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:47,733 INFO L495 AbstractCegarLoop]: Abstraction has 11701 states and 24710 transitions. [2022-09-16 10:46:47,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 11701 states and 24710 transitions. [2022-09-16 10:46:47,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:47,736 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:47,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:47,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-09-16 10:46:47,736 INFO L420 AbstractCegarLoop]: === Iteration 188 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1738265552, now seen corresponding path program 24 times [2022-09-16 10:46:47,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868050077] [2022-09-16 10:46:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:47,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:48,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868050077] [2022-09-16 10:46:48,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868050077] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:48,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:48,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:48,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87886934] [2022-09-16 10:46:48,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:48,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:48,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:48,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:48,040 INFO L87 Difference]: Start difference. First operand 11701 states and 24710 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:51,968 INFO L93 Difference]: Finished difference Result 16128 states and 33739 transitions. [2022-09-16 10:46:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:46:51,969 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:51,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:51,994 INFO L225 Difference]: With dead ends: 16128 [2022-09-16 10:46:51,994 INFO L226 Difference]: Without dead ends: 16128 [2022-09-16 10:46:51,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1316, Invalid=3940, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:46:51,995 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1723 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 2157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:51,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 4803 Invalid, 2157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:46:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16128 states. [2022-09-16 10:46:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16128 to 11715. [2022-09-16 10:46:52,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11715 states, 11669 states have (on average 2.120061701945325) internal successors, (24739), 11714 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11715 states to 11715 states and 24739 transitions. [2022-09-16 10:46:52,250 INFO L78 Accepts]: Start accepts. Automaton has 11715 states and 24739 transitions. Word has length 77 [2022-09-16 10:46:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:52,250 INFO L495 AbstractCegarLoop]: Abstraction has 11715 states and 24739 transitions. [2022-09-16 10:46:52,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11715 states and 24739 transitions. [2022-09-16 10:46:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:52,253 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:52,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-09-16 10:46:52,253 INFO L420 AbstractCegarLoop]: === Iteration 189 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:52,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash 428798420, now seen corresponding path program 25 times [2022-09-16 10:46:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:52,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545729731] [2022-09-16 10:46:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:52,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:52,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545729731] [2022-09-16 10:46:52,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545729731] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:52,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:52,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:52,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319653611] [2022-09-16 10:46:52,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:52,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:52,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:52,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:52,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:52,539 INFO L87 Difference]: Start difference. First operand 11715 states and 24739 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:58,202 INFO L93 Difference]: Finished difference Result 16067 states and 33605 transitions. [2022-09-16 10:46:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-09-16 10:46:58,203 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:46:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:58,229 INFO L225 Difference]: With dead ends: 16067 [2022-09-16 10:46:58,229 INFO L226 Difference]: Without dead ends: 16067 [2022-09-16 10:46:58,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2126 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2967, Invalid=8163, Unknown=0, NotChecked=0, Total=11130 [2022-09-16 10:46:58,230 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1870 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:58,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 4954 Invalid, 2607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:46:58,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16067 states. [2022-09-16 10:46:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16067 to 11700. [2022-09-16 10:46:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11700 states, 11654 states have (on average 2.1201304273210915) internal successors, (24708), 11699 states have internal predecessors, (24708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11700 states to 11700 states and 24708 transitions. [2022-09-16 10:46:58,404 INFO L78 Accepts]: Start accepts. Automaton has 11700 states and 24708 transitions. Word has length 77 [2022-09-16 10:46:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:58,404 INFO L495 AbstractCegarLoop]: Abstraction has 11700 states and 24708 transitions. [2022-09-16 10:46:58,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 11700 states and 24708 transitions. [2022-09-16 10:46:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:46:58,407 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:58,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:58,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-09-16 10:46:58,407 INFO L420 AbstractCegarLoop]: === Iteration 190 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:58,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:58,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1531603294, now seen corresponding path program 26 times [2022-09-16 10:46:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:58,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748548719] [2022-09-16 10:46:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:58,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:58,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:58,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748548719] [2022-09-16 10:46:58,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748548719] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:58,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:58,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:46:58,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830000096] [2022-09-16 10:46:58,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:58,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:46:58,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:58,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:46:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:46:58,645 INFO L87 Difference]: Start difference. First operand 11700 states and 24708 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:00,965 INFO L93 Difference]: Finished difference Result 15286 states and 32012 transitions. [2022-09-16 10:47:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-09-16 10:47:00,966 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:47:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:00,991 INFO L225 Difference]: With dead ends: 15286 [2022-09-16 10:47:00,991 INFO L226 Difference]: Without dead ends: 15286 [2022-09-16 10:47:00,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=918, Invalid=3114, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:47:00,992 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1872 mSDsluCounter, 4508 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:00,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 4863 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:47:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15286 states. [2022-09-16 10:47:01,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15286 to 11714. [2022-09-16 10:47:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11714 states, 11668 states have (on average 2.120071991772369) internal successors, (24737), 11713 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:01,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11714 states to 11714 states and 24737 transitions. [2022-09-16 10:47:01,170 INFO L78 Accepts]: Start accepts. Automaton has 11714 states and 24737 transitions. Word has length 77 [2022-09-16 10:47:01,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:01,170 INFO L495 AbstractCegarLoop]: Abstraction has 11714 states and 24737 transitions. [2022-09-16 10:47:01,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:01,170 INFO L276 IsEmpty]: Start isEmpty. Operand 11714 states and 24737 transitions. [2022-09-16 10:47:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:47:01,173 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:01,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:01,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-09-16 10:47:01,173 INFO L420 AbstractCegarLoop]: === Iteration 191 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:01,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash 222136162, now seen corresponding path program 27 times [2022-09-16 10:47:01,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:01,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568844247] [2022-09-16 10:47:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:01,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:01,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568844247] [2022-09-16 10:47:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568844247] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:01,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:01,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:47:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624961537] [2022-09-16 10:47:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:47:01,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:47:01,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:47:01,431 INFO L87 Difference]: Start difference. First operand 11714 states and 24737 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:06,790 INFO L93 Difference]: Finished difference Result 15459 states and 32362 transitions. [2022-09-16 10:47:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-09-16 10:47:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:47:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:06,814 INFO L225 Difference]: With dead ends: 15459 [2022-09-16 10:47:06,815 INFO L226 Difference]: Without dead ends: 15459 [2022-09-16 10:47:06,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3005, Invalid=8337, Unknown=0, NotChecked=0, Total=11342 [2022-09-16 10:47:06,816 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1896 mSDsluCounter, 4227 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:06,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 4637 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15459 states. [2022-09-16 10:47:06,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15459 to 11336. [2022-09-16 10:47:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11336 states, 11290 states have (on average 2.1225863596102745) internal successors, (23964), 11335 states have internal predecessors, (23964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11336 states to 11336 states and 23964 transitions. [2022-09-16 10:47:06,980 INFO L78 Accepts]: Start accepts. Automaton has 11336 states and 23964 transitions. Word has length 77 [2022-09-16 10:47:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:06,980 INFO L495 AbstractCegarLoop]: Abstraction has 11336 states and 23964 transitions. [2022-09-16 10:47:06,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:06,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11336 states and 23964 transitions. [2022-09-16 10:47:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:47:06,982 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:06,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:06,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-09-16 10:47:06,982 INFO L420 AbstractCegarLoop]: === Iteration 192 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:06,983 INFO L85 PathProgramCache]: Analyzing trace with hash -574520210, now seen corresponding path program 28 times [2022-09-16 10:47:06,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:06,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265986030] [2022-09-16 10:47:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:06,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:07,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:07,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265986030] [2022-09-16 10:47:07,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265986030] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:07,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:07,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:47:07,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006684010] [2022-09-16 10:47:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:07,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:47:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:47:07,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:47:07,280 INFO L87 Difference]: Start difference. First operand 11336 states and 23964 transitions. Second operand has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:12,625 INFO L93 Difference]: Finished difference Result 14234 states and 29860 transitions. [2022-09-16 10:47:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-16 10:47:12,626 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-09-16 10:47:12,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:12,649 INFO L225 Difference]: With dead ends: 14234 [2022-09-16 10:47:12,649 INFO L226 Difference]: Without dead ends: 14234 [2022-09-16 10:47:12,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2103 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2766, Invalid=7536, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:47:12,650 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2033 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 3659 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:12,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 3659 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2022-09-16 10:47:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 11003. [2022-09-16 10:47:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11003 states, 10957 states have (on average 2.1253080222688694) internal successors, (23287), 11002 states have internal predecessors, (23287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 23287 transitions. [2022-09-16 10:47:12,815 INFO L78 Accepts]: Start accepts. Automaton has 11003 states and 23287 transitions. Word has length 77 [2022-09-16 10:47:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:12,815 INFO L495 AbstractCegarLoop]: Abstraction has 11003 states and 23287 transitions. [2022-09-16 10:47:12,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 25 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11003 states and 23287 transitions. [2022-09-16 10:47:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-09-16 10:47:12,817 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:12,818 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:12,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-09-16 10:47:12,818 INFO L420 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash 331137555, now seen corresponding path program 1 times [2022-09-16 10:47:12,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:12,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486354238] [2022-09-16 10:47:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:12,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486354238] [2022-09-16 10:47:12,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486354238] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836571738] [2022-09-16 10:47:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:12,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:12,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:12,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:47:12,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:47:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:13,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 21 conjunts are in the unsatisfiable core [2022-09-16 10:47:13,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:13,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-09-16 10:47:13,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-09-16 10:47:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:13,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:47:13,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-09-16 10:47:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:13,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836571738] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:47:13,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:47:13,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 21 [2022-09-16 10:47:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458684674] [2022-09-16 10:47:13,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:47:13,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:13,412 INFO L87 Difference]: Start difference. First operand 11003 states and 23287 transitions. Second operand has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:13,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:13,886 INFO L93 Difference]: Finished difference Result 11304 states and 23774 transitions. [2022-09-16 10:47:13,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:47:13,886 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-09-16 10:47:13,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:13,905 INFO L225 Difference]: With dead ends: 11304 [2022-09-16 10:47:13,905 INFO L226 Difference]: Without dead ends: 11304 [2022-09-16 10:47:13,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2022-09-16 10:47:13,906 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 2095 mSDsluCounter, 3771 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 4388 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:13,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 4388 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:47:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-09-16 10:47:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 10962. [2022-09-16 10:47:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10962 states, 10916 states have (on average 2.1201905459875414) internal successors, (23144), 10961 states have internal predecessors, (23144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10962 states to 10962 states and 23144 transitions. [2022-09-16 10:47:14,062 INFO L78 Accepts]: Start accepts. Automaton has 10962 states and 23144 transitions. Word has length 80 [2022-09-16 10:47:14,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:14,063 INFO L495 AbstractCegarLoop]: Abstraction has 10962 states and 23144 transitions. [2022-09-16 10:47:14,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 10962 states and 23144 transitions. [2022-09-16 10:47:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:14,065 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:14,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:14,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:47:14,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable192 [2022-09-16 10:47:14,284 INFO L420 AbstractCegarLoop]: === Iteration 194 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:14,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1879352726, now seen corresponding path program 1 times [2022-09-16 10:47:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:14,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751560915] [2022-09-16 10:47:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:14,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:14,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751560915] [2022-09-16 10:47:14,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751560915] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:14,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:14,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:14,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292761607] [2022-09-16 10:47:14,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:14,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:14,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:14,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:14,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:14,697 INFO L87 Difference]: Start difference. First operand 10962 states and 23144 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:19,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:19,904 INFO L93 Difference]: Finished difference Result 15712 states and 32803 transitions. [2022-09-16 10:47:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-16 10:47:19,905 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:19,931 INFO L225 Difference]: With dead ends: 15712 [2022-09-16 10:47:19,931 INFO L226 Difference]: Without dead ends: 15712 [2022-09-16 10:47:19,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1985 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2247, Invalid=6873, Unknown=0, NotChecked=0, Total=9120 [2022-09-16 10:47:19,932 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 2199 mSDsluCounter, 5863 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 6276 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:19,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 6276 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:47:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15712 states. [2022-09-16 10:47:20,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15712 to 11689. [2022-09-16 10:47:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11689 states, 11643 states have (on average 2.114575281284892) internal successors, (24620), 11688 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:20,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11689 states to 11689 states and 24620 transitions. [2022-09-16 10:47:20,123 INFO L78 Accepts]: Start accepts. Automaton has 11689 states and 24620 transitions. Word has length 81 [2022-09-16 10:47:20,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:20,123 INFO L495 AbstractCegarLoop]: Abstraction has 11689 states and 24620 transitions. [2022-09-16 10:47:20,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand 11689 states and 24620 transitions. [2022-09-16 10:47:20,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:20,126 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:20,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:20,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-09-16 10:47:20,126 INFO L420 AbstractCegarLoop]: === Iteration 195 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:20,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:20,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1618718156, now seen corresponding path program 2 times [2022-09-16 10:47:20,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:20,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210021342] [2022-09-16 10:47:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:20,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:20,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:20,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210021342] [2022-09-16 10:47:20,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210021342] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:20,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:20,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227754220] [2022-09-16 10:47:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:20,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:20,511 INFO L87 Difference]: Start difference. First operand 11689 states and 24620 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:26,934 INFO L93 Difference]: Finished difference Result 16604 states and 34615 transitions. [2022-09-16 10:47:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-09-16 10:47:26,934 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:26,959 INFO L225 Difference]: With dead ends: 16604 [2022-09-16 10:47:26,959 INFO L226 Difference]: Without dead ends: 16604 [2022-09-16 10:47:26,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3007 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2926, Invalid=9506, Unknown=0, NotChecked=0, Total=12432 [2022-09-16 10:47:26,962 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 2651 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 5732 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:26,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 5732 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:47:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16604 states. [2022-09-16 10:47:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16604 to 11749. [2022-09-16 10:47:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 11703 states have (on average 2.1142442108860977) internal successors, (24743), 11748 states have internal predecessors, (24743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 24743 transitions. [2022-09-16 10:47:27,144 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 24743 transitions. Word has length 81 [2022-09-16 10:47:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:27,145 INFO L495 AbstractCegarLoop]: Abstraction has 11749 states and 24743 transitions. [2022-09-16 10:47:27,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 24743 transitions. [2022-09-16 10:47:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:27,148 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:27,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:27,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-09-16 10:47:27,148 INFO L420 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:27,148 INFO L85 PathProgramCache]: Analyzing trace with hash -988701623, now seen corresponding path program 1 times [2022-09-16 10:47:27,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:27,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183241724] [2022-09-16 10:47:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:27,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:27,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183241724] [2022-09-16 10:47:27,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183241724] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:27,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:27,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:27,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250665256] [2022-09-16 10:47:27,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:27,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:27,338 INFO L87 Difference]: Start difference. First operand 11749 states and 24743 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:28,658 INFO L93 Difference]: Finished difference Result 28944 states and 61115 transitions. [2022-09-16 10:47:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-16 10:47:28,658 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:28,715 INFO L225 Difference]: With dead ends: 28944 [2022-09-16 10:47:28,715 INFO L226 Difference]: Without dead ends: 28944 [2022-09-16 10:47:28,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=664, Invalid=2198, Unknown=0, NotChecked=0, Total=2862 [2022-09-16 10:47:28,716 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 2690 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 10019 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:28,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 10019 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:47:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28944 states. [2022-09-16 10:47:28,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28944 to 14555. [2022-09-16 10:47:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14555 states, 14509 states have (on average 2.158522296505617) internal successors, (31318), 14554 states have internal predecessors, (31318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14555 states to 14555 states and 31318 transitions. [2022-09-16 10:47:29,025 INFO L78 Accepts]: Start accepts. Automaton has 14555 states and 31318 transitions. Word has length 81 [2022-09-16 10:47:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:29,025 INFO L495 AbstractCegarLoop]: Abstraction has 14555 states and 31318 transitions. [2022-09-16 10:47:29,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 14555 states and 31318 transitions. [2022-09-16 10:47:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:29,066 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:29,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:29,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-09-16 10:47:29,066 INFO L420 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:29,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:29,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1990228443, now seen corresponding path program 2 times [2022-09-16 10:47:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:29,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504036981] [2022-09-16 10:47:29,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:29,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:29,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:29,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504036981] [2022-09-16 10:47:29,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504036981] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:29,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:29,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:29,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648411733] [2022-09-16 10:47:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:29,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:29,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:29,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:29,260 INFO L87 Difference]: Start difference. First operand 14555 states and 31318 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:31,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:31,661 INFO L93 Difference]: Finished difference Result 34084 states and 71685 transitions. [2022-09-16 10:47:31,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:47:31,661 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:31,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:31,721 INFO L225 Difference]: With dead ends: 34084 [2022-09-16 10:47:31,721 INFO L226 Difference]: Without dead ends: 34084 [2022-09-16 10:47:31,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1075, Invalid=3215, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:47:31,722 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 3672 mSDsluCounter, 10521 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3672 SdHoareTripleChecker+Valid, 11345 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:31,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3672 Valid, 11345 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34084 states. [2022-09-16 10:47:32,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34084 to 14531. [2022-09-16 10:47:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14531 states, 14485 states have (on average 2.1596824301001036) internal successors, (31283), 14530 states have internal predecessors, (31283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14531 states to 14531 states and 31283 transitions. [2022-09-16 10:47:32,048 INFO L78 Accepts]: Start accepts. Automaton has 14531 states and 31283 transitions. Word has length 81 [2022-09-16 10:47:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:32,048 INFO L495 AbstractCegarLoop]: Abstraction has 14531 states and 31283 transitions. [2022-09-16 10:47:32,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:32,048 INFO L276 IsEmpty]: Start isEmpty. Operand 14531 states and 31283 transitions. [2022-09-16 10:47:32,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:32,052 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:32,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:32,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-09-16 10:47:32,053 INFO L420 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:32,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:32,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1702578953, now seen corresponding path program 3 times [2022-09-16 10:47:32,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:32,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951780860] [2022-09-16 10:47:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:32,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:32,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951780860] [2022-09-16 10:47:32,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951780860] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:32,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:32,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:32,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341402480] [2022-09-16 10:47:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:32,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:32,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:32,324 INFO L87 Difference]: Start difference. First operand 14531 states and 31283 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:34,312 INFO L93 Difference]: Finished difference Result 36284 states and 76610 transitions. [2022-09-16 10:47:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:47:34,313 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:34,388 INFO L225 Difference]: With dead ends: 36284 [2022-09-16 10:47:34,388 INFO L226 Difference]: Without dead ends: 36284 [2022-09-16 10:47:34,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1174, Invalid=3518, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:47:34,389 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 3365 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 9371 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:34,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 9371 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:47:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36284 states. [2022-09-16 10:47:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36284 to 14623. [2022-09-16 10:47:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14623 states, 14577 states have (on average 2.159840845167044) internal successors, (31484), 14622 states have internal predecessors, (31484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14623 states to 14623 states and 31484 transitions. [2022-09-16 10:47:34,764 INFO L78 Accepts]: Start accepts. Automaton has 14623 states and 31484 transitions. Word has length 81 [2022-09-16 10:47:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:34,764 INFO L495 AbstractCegarLoop]: Abstraction has 14623 states and 31484 transitions. [2022-09-16 10:47:34,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:34,764 INFO L276 IsEmpty]: Start isEmpty. Operand 14623 states and 31484 transitions. [2022-09-16 10:47:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:34,769 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:34,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:34,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-09-16 10:47:34,769 INFO L420 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2139617711, now seen corresponding path program 4 times [2022-09-16 10:47:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:34,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425716263] [2022-09-16 10:47:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:35,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425716263] [2022-09-16 10:47:35,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425716263] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:35,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:35,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570814844] [2022-09-16 10:47:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:35,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:35,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:35,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:35,092 INFO L87 Difference]: Start difference. First operand 14623 states and 31484 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:37,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:37,928 INFO L93 Difference]: Finished difference Result 45220 states and 95433 transitions. [2022-09-16 10:47:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:47:37,928 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:38,033 INFO L225 Difference]: With dead ends: 45220 [2022-09-16 10:47:38,033 INFO L226 Difference]: Without dead ends: 45220 [2022-09-16 10:47:38,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1164, Invalid=3528, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:47:38,034 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 3453 mSDsluCounter, 9465 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3453 SdHoareTripleChecker+Valid, 10479 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:38,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3453 Valid, 10479 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45220 states. [2022-09-16 10:47:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45220 to 14558. [2022-09-16 10:47:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14558 states, 14512 states have (on average 2.1596609702315326) internal successors, (31341), 14557 states have internal predecessors, (31341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14558 states to 14558 states and 31341 transitions. [2022-09-16 10:47:38,467 INFO L78 Accepts]: Start accepts. Automaton has 14558 states and 31341 transitions. Word has length 81 [2022-09-16 10:47:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:38,467 INFO L495 AbstractCegarLoop]: Abstraction has 14558 states and 31341 transitions. [2022-09-16 10:47:38,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 14558 states and 31341 transitions. [2022-09-16 10:47:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:38,471 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:38,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:38,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-09-16 10:47:38,472 INFO L420 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1947778593, now seen corresponding path program 5 times [2022-09-16 10:47:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:38,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855388786] [2022-09-16 10:47:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:38,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:38,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855388786] [2022-09-16 10:47:38,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855388786] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:38,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:38,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:38,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886193756] [2022-09-16 10:47:38,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:38,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:38,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:38,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:38,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:38,726 INFO L87 Difference]: Start difference. First operand 14558 states and 31341 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:41,160 INFO L93 Difference]: Finished difference Result 48104 states and 101731 transitions. [2022-09-16 10:47:41,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-09-16 10:47:41,161 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:41,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:41,267 INFO L225 Difference]: With dead ends: 48104 [2022-09-16 10:47:41,267 INFO L226 Difference]: Without dead ends: 48104 [2022-09-16 10:47:41,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1318, Invalid=3938, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:47:41,268 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 3448 mSDsluCounter, 9396 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 10247 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:41,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3448 Valid, 10247 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:41,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48104 states. [2022-09-16 10:47:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48104 to 14583. [2022-09-16 10:47:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14583 states, 14537 states have (on average 2.1593863933411295) internal successors, (31391), 14582 states have internal predecessors, (31391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14583 states to 14583 states and 31391 transitions. [2022-09-16 10:47:41,718 INFO L78 Accepts]: Start accepts. Automaton has 14583 states and 31391 transitions. Word has length 81 [2022-09-16 10:47:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:41,718 INFO L495 AbstractCegarLoop]: Abstraction has 14583 states and 31391 transitions. [2022-09-16 10:47:41,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 14583 states and 31391 transitions. [2022-09-16 10:47:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:41,723 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:41,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:41,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-09-16 10:47:41,723 INFO L420 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:41,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1495007961, now seen corresponding path program 6 times [2022-09-16 10:47:41,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:41,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141111833] [2022-09-16 10:47:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:41,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:41,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:41,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141111833] [2022-09-16 10:47:41,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141111833] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:41,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:41,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353847784] [2022-09-16 10:47:41,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:41,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:41,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:41,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:41,998 INFO L87 Difference]: Start difference. First operand 14583 states and 31391 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:44,388 INFO L93 Difference]: Finished difference Result 47984 states and 101465 transitions. [2022-09-16 10:47:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:47:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:44,498 INFO L225 Difference]: With dead ends: 47984 [2022-09-16 10:47:44,499 INFO L226 Difference]: Without dead ends: 47984 [2022-09-16 10:47:44,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1150, Invalid=3542, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:47:44,499 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 3203 mSDsluCounter, 10952 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3203 SdHoareTripleChecker+Valid, 11968 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:44,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3203 Valid, 11968 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:44,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47984 states. [2022-09-16 10:47:44,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47984 to 14583. [2022-09-16 10:47:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14583 states, 14537 states have (on average 2.1593863933411295) internal successors, (31391), 14582 states have internal predecessors, (31391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14583 states to 14583 states and 31391 transitions. [2022-09-16 10:47:44,931 INFO L78 Accepts]: Start accepts. Automaton has 14583 states and 31391 transitions. Word has length 81 [2022-09-16 10:47:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:44,931 INFO L495 AbstractCegarLoop]: Abstraction has 14583 states and 31391 transitions. [2022-09-16 10:47:44,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14583 states and 31391 transitions. [2022-09-16 10:47:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:44,936 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:44,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:44,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-09-16 10:47:44,936 INFO L420 AbstractCegarLoop]: === Iteration 202 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:44,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:44,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1169111840, now seen corresponding path program 3 times [2022-09-16 10:47:44,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:44,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297111896] [2022-09-16 10:47:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:44,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:45,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:45,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297111896] [2022-09-16 10:47:45,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297111896] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:45,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:45,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:45,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647776216] [2022-09-16 10:47:45,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:45,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:45,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:45,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:45,387 INFO L87 Difference]: Start difference. First operand 14583 states and 31391 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:50,698 INFO L93 Difference]: Finished difference Result 18544 states and 39467 transitions. [2022-09-16 10:47:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-16 10:47:50,699 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:50,731 INFO L225 Difference]: With dead ends: 18544 [2022-09-16 10:47:50,731 INFO L226 Difference]: Without dead ends: 18544 [2022-09-16 10:47:50,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1683 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2184, Invalid=6372, Unknown=0, NotChecked=0, Total=8556 [2022-09-16 10:47:50,732 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1968 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 3084 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 7652 SdHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:50,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 7652 Invalid, 3124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3084 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:47:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18544 states. [2022-09-16 10:47:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18544 to 14574. [2022-09-16 10:47:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14574 states, 14528 states have (on average 2.1594851321585904) internal successors, (31373), 14573 states have internal predecessors, (31373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14574 states to 14574 states and 31373 transitions. [2022-09-16 10:47:50,974 INFO L78 Accepts]: Start accepts. Automaton has 14574 states and 31373 transitions. Word has length 81 [2022-09-16 10:47:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:50,974 INFO L495 AbstractCegarLoop]: Abstraction has 14574 states and 31373 transitions. [2022-09-16 10:47:50,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 14574 states and 31373 transitions. [2022-09-16 10:47:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:50,979 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:50,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:50,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-09-16 10:47:50,979 INFO L420 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1484509275, now seen corresponding path program 7 times [2022-09-16 10:47:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:50,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157647609] [2022-09-16 10:47:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:50,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:51,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157647609] [2022-09-16 10:47:51,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157647609] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:51,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:51,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:51,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257922003] [2022-09-16 10:47:51,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:51,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:51,317 INFO L87 Difference]: Start difference. First operand 14574 states and 31373 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:53,667 INFO L93 Difference]: Finished difference Result 40941 states and 86402 transitions. [2022-09-16 10:47:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:47:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:53,754 INFO L225 Difference]: With dead ends: 40941 [2022-09-16 10:47:53,754 INFO L226 Difference]: Without dead ends: 40941 [2022-09-16 10:47:53,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1348, Invalid=4054, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:47:53,755 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 3162 mSDsluCounter, 9800 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 10670 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:53,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 10670 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:47:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40941 states. [2022-09-16 10:47:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40941 to 15086. [2022-09-16 10:47:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15086 states, 15040 states have (on average 2.1695478723404253) internal successors, (32630), 15085 states have internal predecessors, (32630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15086 states to 15086 states and 32630 transitions. [2022-09-16 10:47:54,174 INFO L78 Accepts]: Start accepts. Automaton has 15086 states and 32630 transitions. Word has length 81 [2022-09-16 10:47:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:54,174 INFO L495 AbstractCegarLoop]: Abstraction has 15086 states and 32630 transitions. [2022-09-16 10:47:54,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 15086 states and 32630 transitions. [2022-09-16 10:47:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:54,179 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:54,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:54,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-09-16 10:47:54,179 INFO L420 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:54,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash 115984291, now seen corresponding path program 8 times [2022-09-16 10:47:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:54,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20197220] [2022-09-16 10:47:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:54,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:54,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20197220] [2022-09-16 10:47:54,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20197220] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:54,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:54,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196844189] [2022-09-16 10:47:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:54,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:54,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:54,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:54,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:54,464 INFO L87 Difference]: Start difference. First operand 15086 states and 32630 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:56,735 INFO L93 Difference]: Finished difference Result 49208 states and 104474 transitions. [2022-09-16 10:47:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-09-16 10:47:56,735 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:47:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:56,841 INFO L225 Difference]: With dead ends: 49208 [2022-09-16 10:47:56,841 INFO L226 Difference]: Without dead ends: 49208 [2022-09-16 10:47:56,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1283, Invalid=3973, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:47:56,842 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 3764 mSDsluCounter, 8905 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3764 SdHoareTripleChecker+Valid, 9748 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:56,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3764 Valid, 9748 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:47:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49208 states. [2022-09-16 10:47:57,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49208 to 15166. [2022-09-16 10:47:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15166 states, 15120 states have (on average 2.1686507936507935) internal successors, (32790), 15165 states have internal predecessors, (32790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:57,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15166 states to 15166 states and 32790 transitions. [2022-09-16 10:47:57,383 INFO L78 Accepts]: Start accepts. Automaton has 15166 states and 32790 transitions. Word has length 81 [2022-09-16 10:47:57,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:57,383 INFO L495 AbstractCegarLoop]: Abstraction has 15166 states and 32790 transitions. [2022-09-16 10:47:57,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 15166 states and 32790 transitions. [2022-09-16 10:47:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:47:57,388 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:57,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:57,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-09-16 10:47:57,388 INFO L420 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash 568754923, now seen corresponding path program 9 times [2022-09-16 10:47:57,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:57,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133255946] [2022-09-16 10:47:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:57,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:57,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:57,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133255946] [2022-09-16 10:47:57,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133255946] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:57,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:57,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:47:57,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949049237] [2022-09-16 10:47:57,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:57,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:47:57,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:57,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:47:57,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:47:57,753 INFO L87 Difference]: Start difference. First operand 15166 states and 32790 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:00,677 INFO L93 Difference]: Finished difference Result 49014 states and 104047 transitions. [2022-09-16 10:48:00,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:48:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:00,796 INFO L225 Difference]: With dead ends: 49014 [2022-09-16 10:48:00,796 INFO L226 Difference]: Without dead ends: 49014 [2022-09-16 10:48:00,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1072, Invalid=3350, Unknown=0, NotChecked=0, Total=4422 [2022-09-16 10:48:00,797 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 3130 mSDsluCounter, 10428 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 11436 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:00,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 11436 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:00,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49014 states. [2022-09-16 10:48:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49014 to 15166. [2022-09-16 10:48:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15166 states, 15120 states have (on average 2.1686507936507935) internal successors, (32790), 15165 states have internal predecessors, (32790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15166 states to 15166 states and 32790 transitions. [2022-09-16 10:48:01,316 INFO L78 Accepts]: Start accepts. Automaton has 15166 states and 32790 transitions. Word has length 81 [2022-09-16 10:48:01,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:01,316 INFO L495 AbstractCegarLoop]: Abstraction has 15166 states and 32790 transitions. [2022-09-16 10:48:01,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 15166 states and 32790 transitions. [2022-09-16 10:48:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:01,320 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:01,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:01,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-09-16 10:48:01,321 INFO L420 AbstractCegarLoop]: === Iteration 206 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:01,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash 894651044, now seen corresponding path program 4 times [2022-09-16 10:48:01,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:01,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325581878] [2022-09-16 10:48:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:01,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:01,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:01,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325581878] [2022-09-16 10:48:01,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325581878] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:01,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:01,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:01,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812957943] [2022-09-16 10:48:01,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:01,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:01,678 INFO L87 Difference]: Start difference. First operand 15166 states and 32790 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:06,978 INFO L93 Difference]: Finished difference Result 19190 states and 40992 transitions. [2022-09-16 10:48:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-16 10:48:06,979 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:07,013 INFO L225 Difference]: With dead ends: 19190 [2022-09-16 10:48:07,013 INFO L226 Difference]: Without dead ends: 19190 [2022-09-16 10:48:07,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2142, Invalid=6230, Unknown=0, NotChecked=0, Total=8372 [2022-09-16 10:48:07,014 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2155 mSDsluCounter, 5532 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:07,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 6010 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:07,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19190 states. [2022-09-16 10:48:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19190 to 15157. [2022-09-16 10:48:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15157 states, 15111 states have (on average 2.1687512408179472) internal successors, (32772), 15156 states have internal predecessors, (32772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15157 states to 15157 states and 32772 transitions. [2022-09-16 10:48:07,245 INFO L78 Accepts]: Start accepts. Automaton has 15157 states and 32772 transitions. Word has length 81 [2022-09-16 10:48:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:07,245 INFO L495 AbstractCegarLoop]: Abstraction has 15157 states and 32772 transitions. [2022-09-16 10:48:07,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand 15157 states and 32772 transitions. [2022-09-16 10:48:07,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:07,249 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:07,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:07,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-09-16 10:48:07,249 INFO L420 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:07,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -746695137, now seen corresponding path program 10 times [2022-09-16 10:48:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:07,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613952166] [2022-09-16 10:48:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:07,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:07,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:07,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613952166] [2022-09-16 10:48:07,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613952166] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:07,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:07,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:07,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844886638] [2022-09-16 10:48:07,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:07,447 INFO L87 Difference]: Start difference. First operand 15157 states and 32772 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:10,031 INFO L93 Difference]: Finished difference Result 53791 states and 114097 transitions. [2022-09-16 10:48:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-16 10:48:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:10,156 INFO L225 Difference]: With dead ends: 53791 [2022-09-16 10:48:10,156 INFO L226 Difference]: Without dead ends: 53791 [2022-09-16 10:48:10,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1502, Invalid=4660, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:48:10,157 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 3159 mSDsluCounter, 9830 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 10724 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:10,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 10724 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53791 states. [2022-09-16 10:48:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53791 to 15141. [2022-09-16 10:48:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15141 states, 15095 states have (on average 2.1689301093077176) internal successors, (32740), 15140 states have internal predecessors, (32740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15141 states to 15141 states and 32740 transitions. [2022-09-16 10:48:10,668 INFO L78 Accepts]: Start accepts. Automaton has 15141 states and 32740 transitions. Word has length 81 [2022-09-16 10:48:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:10,669 INFO L495 AbstractCegarLoop]: Abstraction has 15141 states and 32740 transitions. [2022-09-16 10:48:10,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15141 states and 32740 transitions. [2022-09-16 10:48:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:10,673 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:10,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:10,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-09-16 10:48:10,673 INFO L420 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1562172571, now seen corresponding path program 11 times [2022-09-16 10:48:10,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:10,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220824902] [2022-09-16 10:48:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:10,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220824902] [2022-09-16 10:48:10,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220824902] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:10,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:10,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:10,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918467525] [2022-09-16 10:48:10,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:10,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:10,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:10,989 INFO L87 Difference]: Start difference. First operand 15141 states and 32740 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:13,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:13,465 INFO L93 Difference]: Finished difference Result 40648 states and 86004 transitions. [2022-09-16 10:48:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:48:13,466 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:13,543 INFO L225 Difference]: With dead ends: 40648 [2022-09-16 10:48:13,544 INFO L226 Difference]: Without dead ends: 40648 [2022-09-16 10:48:13,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1135, Invalid=3557, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:48:13,544 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 3390 mSDsluCounter, 8102 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 8955 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:13,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 8955 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40648 states. [2022-09-16 10:48:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40648 to 15312. [2022-09-16 10:48:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15312 states, 15266 states have (on average 2.1686099829686887) internal successors, (33106), 15311 states have internal predecessors, (33106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15312 states to 15312 states and 33106 transitions. [2022-09-16 10:48:14,023 INFO L78 Accepts]: Start accepts. Automaton has 15312 states and 33106 transitions. Word has length 81 [2022-09-16 10:48:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:14,023 INFO L495 AbstractCegarLoop]: Abstraction has 15312 states and 33106 transitions. [2022-09-16 10:48:14,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 15312 states and 33106 transitions. [2022-09-16 10:48:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:14,028 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:14,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:14,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-09-16 10:48:14,028 INFO L420 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -194349721, now seen corresponding path program 12 times [2022-09-16 10:48:14,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:14,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370598130] [2022-09-16 10:48:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:14,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:14,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370598130] [2022-09-16 10:48:14,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370598130] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:14,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:14,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726786527] [2022-09-16 10:48:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:14,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:14,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:14,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:14,267 INFO L87 Difference]: Start difference. First operand 15312 states and 33106 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:16,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:16,843 INFO L93 Difference]: Finished difference Result 50566 states and 107473 transitions. [2022-09-16 10:48:16,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:48:16,843 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:16,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:16,953 INFO L225 Difference]: With dead ends: 50566 [2022-09-16 10:48:16,953 INFO L226 Difference]: Without dead ends: 50566 [2022-09-16 10:48:16,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1139, Invalid=3417, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:48:16,954 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 3423 mSDsluCounter, 8603 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 9471 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:16,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 9471 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50566 states. [2022-09-16 10:48:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50566 to 15385. [2022-09-16 10:48:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15385 states, 15339 states have (on average 2.1678075493839235) internal successors, (33252), 15384 states have internal predecessors, (33252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 33252 transitions. [2022-09-16 10:48:17,532 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 33252 transitions. Word has length 81 [2022-09-16 10:48:17,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:17,532 INFO L495 AbstractCegarLoop]: Abstraction has 15385 states and 33252 transitions. [2022-09-16 10:48:17,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:17,532 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 33252 transitions. [2022-09-16 10:48:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:17,536 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:17,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:17,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-09-16 10:48:17,537 INFO L420 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:17,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash 258420911, now seen corresponding path program 13 times [2022-09-16 10:48:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:17,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492819838] [2022-09-16 10:48:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:17,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:17,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:17,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492819838] [2022-09-16 10:48:17,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492819838] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:17,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:17,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133192205] [2022-09-16 10:48:17,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:17,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:17,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:17,805 INFO L87 Difference]: Start difference. First operand 15385 states and 33252 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:19,990 INFO L93 Difference]: Finished difference Result 50336 states and 106974 transitions. [2022-09-16 10:48:19,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:48:19,991 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:20,114 INFO L225 Difference]: With dead ends: 50336 [2022-09-16 10:48:20,114 INFO L226 Difference]: Without dead ends: 50336 [2022-09-16 10:48:20,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=928, Invalid=2854, Unknown=0, NotChecked=0, Total=3782 [2022-09-16 10:48:20,115 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 3147 mSDsluCounter, 10614 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 11647 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:20,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 11647 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50336 states. [2022-09-16 10:48:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50336 to 15385. [2022-09-16 10:48:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15385 states, 15339 states have (on average 2.1678075493839235) internal successors, (33252), 15384 states have internal predecessors, (33252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 33252 transitions. [2022-09-16 10:48:20,699 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 33252 transitions. Word has length 81 [2022-09-16 10:48:20,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:20,700 INFO L495 AbstractCegarLoop]: Abstraction has 15385 states and 33252 transitions. [2022-09-16 10:48:20,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 33252 transitions. [2022-09-16 10:48:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:20,703 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:20,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:20,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-09-16 10:48:20,704 INFO L420 AbstractCegarLoop]: === Iteration 211 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:20,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash 584317032, now seen corresponding path program 5 times [2022-09-16 10:48:20,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:20,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738735334] [2022-09-16 10:48:20,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:20,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738735334] [2022-09-16 10:48:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738735334] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:21,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:21,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:21,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622918899] [2022-09-16 10:48:21,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:21,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:21,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:21,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:21,230 INFO L87 Difference]: Start difference. First operand 15385 states and 33252 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:26,422 INFO L93 Difference]: Finished difference Result 19418 states and 41472 transitions. [2022-09-16 10:48:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-09-16 10:48:26,423 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:26,449 INFO L225 Difference]: With dead ends: 19418 [2022-09-16 10:48:26,450 INFO L226 Difference]: Without dead ends: 19418 [2022-09-16 10:48:26,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1632 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2098, Invalid=6092, Unknown=0, NotChecked=0, Total=8190 [2022-09-16 10:48:26,450 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 2149 mSDsluCounter, 5139 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:26,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 5631 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19418 states. [2022-09-16 10:48:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19418 to 15376. [2022-09-16 10:48:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15376 states, 15330 states have (on average 2.1679060665362035) internal successors, (33234), 15375 states have internal predecessors, (33234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15376 states to 15376 states and 33234 transitions. [2022-09-16 10:48:26,674 INFO L78 Accepts]: Start accepts. Automaton has 15376 states and 33234 transitions. Word has length 81 [2022-09-16 10:48:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:26,675 INFO L495 AbstractCegarLoop]: Abstraction has 15376 states and 33234 transitions. [2022-09-16 10:48:26,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 15376 states and 33234 transitions. [2022-09-16 10:48:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:26,679 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:26,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:26,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-09-16 10:48:26,679 INFO L420 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:26,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:26,680 INFO L85 PathProgramCache]: Analyzing trace with hash -173473889, now seen corresponding path program 14 times [2022-09-16 10:48:26,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:26,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125724991] [2022-09-16 10:48:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:26,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:26,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125724991] [2022-09-16 10:48:26,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125724991] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:26,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:26,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54727732] [2022-09-16 10:48:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:26,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:26,949 INFO L87 Difference]: Start difference. First operand 15376 states and 33234 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:29,772 INFO L93 Difference]: Finished difference Result 55776 states and 118679 transitions. [2022-09-16 10:48:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-09-16 10:48:29,772 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:29,891 INFO L225 Difference]: With dead ends: 55776 [2022-09-16 10:48:29,891 INFO L226 Difference]: Without dead ends: 55776 [2022-09-16 10:48:29,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1318, Invalid=3938, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:48:29,891 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 3392 mSDsluCounter, 10642 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 11563 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:29,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 11563 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55776 states. [2022-09-16 10:48:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55776 to 15360. [2022-09-16 10:48:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15360 states, 15314 states have (on average 2.168081494057725) internal successors, (33202), 15359 states have internal predecessors, (33202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:30,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15360 states to 15360 states and 33202 transitions. [2022-09-16 10:48:30,445 INFO L78 Accepts]: Start accepts. Automaton has 15360 states and 33202 transitions. Word has length 81 [2022-09-16 10:48:30,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:30,445 INFO L495 AbstractCegarLoop]: Abstraction has 15360 states and 33202 transitions. [2022-09-16 10:48:30,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 15360 states and 33202 transitions. [2022-09-16 10:48:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:30,449 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:30,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:30,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-09-16 10:48:30,450 INFO L420 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:30,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1040563739, now seen corresponding path program 15 times [2022-09-16 10:48:30,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:30,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270541582] [2022-09-16 10:48:30,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:30,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:30,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:30,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270541582] [2022-09-16 10:48:30,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270541582] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:30,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:30,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352138772] [2022-09-16 10:48:30,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:30,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:30,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:30,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:30,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:30,675 INFO L87 Difference]: Start difference. First operand 15360 states and 33202 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:33,259 INFO L93 Difference]: Finished difference Result 54850 states and 116737 transitions. [2022-09-16 10:48:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:48:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:33,389 INFO L225 Difference]: With dead ends: 54850 [2022-09-16 10:48:33,389 INFO L226 Difference]: Without dead ends: 54850 [2022-09-16 10:48:33,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1144, Invalid=3548, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:48:33,390 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 3057 mSDsluCounter, 9573 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 10477 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:33,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 10477 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2488 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54850 states. [2022-09-16 10:48:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54850 to 15305. [2022-09-16 10:48:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15305 states, 15259 states have (on average 2.1686873320663214) internal successors, (33092), 15304 states have internal predecessors, (33092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15305 states to 15305 states and 33092 transitions. [2022-09-16 10:48:33,981 INFO L78 Accepts]: Start accepts. Automaton has 15305 states and 33092 transitions. Word has length 81 [2022-09-16 10:48:33,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:33,981 INFO L495 AbstractCegarLoop]: Abstraction has 15305 states and 33092 transitions. [2022-09-16 10:48:33,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand 15305 states and 33092 transitions. [2022-09-16 10:48:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:33,985 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:33,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:33,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-09-16 10:48:33,986 INFO L420 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:33,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash -911005495, now seen corresponding path program 16 times [2022-09-16 10:48:33,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:33,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838653170] [2022-09-16 10:48:33,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:33,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:34,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:34,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838653170] [2022-09-16 10:48:34,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838653170] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:34,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:34,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:34,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434490285] [2022-09-16 10:48:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:34,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:34,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:34,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:34,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:34,240 INFO L87 Difference]: Start difference. First operand 15305 states and 33092 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:36,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:36,471 INFO L93 Difference]: Finished difference Result 42503 states and 89977 transitions. [2022-09-16 10:48:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:48:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:36,552 INFO L225 Difference]: With dead ends: 42503 [2022-09-16 10:48:36,552 INFO L226 Difference]: Without dead ends: 42503 [2022-09-16 10:48:36,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=992, Invalid=3168, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:48:36,553 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 2893 mSDsluCounter, 9585 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 10479 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:36,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 10479 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42503 states. [2022-09-16 10:48:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42503 to 15278. [2022-09-16 10:48:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15278 states, 15232 states have (on average 2.1684611344537816) internal successors, (33030), 15277 states have internal predecessors, (33030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15278 states to 15278 states and 33030 transitions. [2022-09-16 10:48:36,928 INFO L78 Accepts]: Start accepts. Automaton has 15278 states and 33030 transitions. Word has length 81 [2022-09-16 10:48:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:36,929 INFO L495 AbstractCegarLoop]: Abstraction has 15278 states and 33030 transitions. [2022-09-16 10:48:36,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 15278 states and 33030 transitions. [2022-09-16 10:48:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:36,933 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:36,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:36,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-09-16 10:48:36,933 INFO L420 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:36,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1467232411, now seen corresponding path program 17 times [2022-09-16 10:48:36,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:36,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69241329] [2022-09-16 10:48:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:36,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:37,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:37,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69241329] [2022-09-16 10:48:37,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69241329] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:37,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:37,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997831464] [2022-09-16 10:48:37,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:37,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:37,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:37,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:37,256 INFO L87 Difference]: Start difference. First operand 15278 states and 33030 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:39,807 INFO L93 Difference]: Finished difference Result 46652 states and 98627 transitions. [2022-09-16 10:48:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:48:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:39,904 INFO L225 Difference]: With dead ends: 46652 [2022-09-16 10:48:39,905 INFO L226 Difference]: Without dead ends: 46652 [2022-09-16 10:48:39,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1055, Invalid=3501, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:48:39,905 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 3139 mSDsluCounter, 10907 mSDsCounter, 0 mSdLazyCounter, 2862 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 11802 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:39,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 11802 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2862 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46652 states. [2022-09-16 10:48:40,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46652 to 15412. [2022-09-16 10:48:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15412 states, 15366 states have (on average 2.1679031628270207) internal successors, (33312), 15411 states have internal predecessors, (33312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15412 states to 15412 states and 33312 transitions. [2022-09-16 10:48:40,354 INFO L78 Accepts]: Start accepts. Automaton has 15412 states and 33312 transitions. Word has length 81 [2022-09-16 10:48:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:40,354 INFO L495 AbstractCegarLoop]: Abstraction has 15412 states and 33312 transitions. [2022-09-16 10:48:40,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15412 states and 33312 transitions. [2022-09-16 10:48:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:40,358 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:40,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:40,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-09-16 10:48:40,358 INFO L420 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash -989946507, now seen corresponding path program 18 times [2022-09-16 10:48:40,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:40,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376308583] [2022-09-16 10:48:40,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:40,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:40,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:40,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376308583] [2022-09-16 10:48:40,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376308583] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:40,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:40,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660772271] [2022-09-16 10:48:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:40,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:40,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:40,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:40,630 INFO L87 Difference]: Start difference. First operand 15412 states and 33312 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:43,616 INFO L93 Difference]: Finished difference Result 54400 states and 115357 transitions. [2022-09-16 10:48:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:48:43,616 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:43,739 INFO L225 Difference]: With dead ends: 54400 [2022-09-16 10:48:43,739 INFO L226 Difference]: Without dead ends: 54400 [2022-09-16 10:48:43,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1232, Invalid=3738, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:48:43,740 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 2910 mSDsluCounter, 11423 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 12341 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:43,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 12341 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:48:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54400 states. [2022-09-16 10:48:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54400 to 15485. [2022-09-16 10:48:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15485 states, 15439 states have (on average 2.1671092687350217) internal successors, (33458), 15484 states have internal predecessors, (33458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15485 states to 15485 states and 33458 transitions. [2022-09-16 10:48:44,322 INFO L78 Accepts]: Start accepts. Automaton has 15485 states and 33458 transitions. Word has length 81 [2022-09-16 10:48:44,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:44,322 INFO L495 AbstractCegarLoop]: Abstraction has 15485 states and 33458 transitions. [2022-09-16 10:48:44,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 15485 states and 33458 transitions. [2022-09-16 10:48:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:44,326 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:44,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:44,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-09-16 10:48:44,327 INFO L420 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash -537175875, now seen corresponding path program 19 times [2022-09-16 10:48:44,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:44,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448379652] [2022-09-16 10:48:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:44,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:44,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:44,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448379652] [2022-09-16 10:48:44,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448379652] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:44,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:44,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428598375] [2022-09-16 10:48:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:44,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:44,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:44,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:44,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:44,557 INFO L87 Difference]: Start difference. First operand 15485 states and 33458 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:46,937 INFO L93 Difference]: Finished difference Result 54164 states and 114846 transitions. [2022-09-16 10:48:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:48:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:47,071 INFO L225 Difference]: With dead ends: 54164 [2022-09-16 10:48:47,071 INFO L226 Difference]: Without dead ends: 54164 [2022-09-16 10:48:47,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1011, Invalid=3149, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:48:47,072 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 2991 mSDsluCounter, 10263 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2991 SdHoareTripleChecker+Valid, 11298 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:47,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2991 Valid, 11298 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54164 states. [2022-09-16 10:48:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54164 to 15485. [2022-09-16 10:48:47,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15485 states, 15439 states have (on average 2.1671092687350217) internal successors, (33458), 15484 states have internal predecessors, (33458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15485 states to 15485 states and 33458 transitions. [2022-09-16 10:48:47,767 INFO L78 Accepts]: Start accepts. Automaton has 15485 states and 33458 transitions. Word has length 81 [2022-09-16 10:48:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:47,767 INFO L495 AbstractCegarLoop]: Abstraction has 15485 states and 33458 transitions. [2022-09-16 10:48:47,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 15485 states and 33458 transitions. [2022-09-16 10:48:47,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:47,772 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:47,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:47,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-09-16 10:48:47,772 INFO L420 AbstractCegarLoop]: === Iteration 218 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:47,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash -211279754, now seen corresponding path program 6 times [2022-09-16 10:48:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:47,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072969910] [2022-09-16 10:48:47,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:47,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:48,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:48,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072969910] [2022-09-16 10:48:48,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072969910] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:48,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:48,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575057519] [2022-09-16 10:48:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:48,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:48,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:48,135 INFO L87 Difference]: Start difference. First operand 15485 states and 33458 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:53,593 INFO L93 Difference]: Finished difference Result 19563 states and 41768 transitions. [2022-09-16 10:48:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:48:53,593 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:53,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:53,628 INFO L225 Difference]: With dead ends: 19563 [2022-09-16 10:48:53,628 INFO L226 Difference]: Without dead ends: 19563 [2022-09-16 10:48:53,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1608 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2052, Invalid=5958, Unknown=0, NotChecked=0, Total=8010 [2022-09-16 10:48:53,629 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 2455 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:53,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 5660 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:48:53,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19563 states. [2022-09-16 10:48:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19563 to 15476. [2022-09-16 10:48:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15476 states, 15430 states have (on average 2.1672067401166557) internal successors, (33440), 15475 states have internal predecessors, (33440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15476 states to 15476 states and 33440 transitions. [2022-09-16 10:48:53,893 INFO L78 Accepts]: Start accepts. Automaton has 15476 states and 33440 transitions. Word has length 81 [2022-09-16 10:48:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:53,893 INFO L495 AbstractCegarLoop]: Abstraction has 15476 states and 33440 transitions. [2022-09-16 10:48:53,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 15476 states and 33440 transitions. [2022-09-16 10:48:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:53,897 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:53,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-09-16 10:48:53,898 INFO L420 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash -969070675, now seen corresponding path program 20 times [2022-09-16 10:48:53,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:53,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412820709] [2022-09-16 10:48:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:54,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:54,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412820709] [2022-09-16 10:48:54,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412820709] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:54,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:54,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:54,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599247704] [2022-09-16 10:48:54,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:54,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:54,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:54,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:54,126 INFO L87 Difference]: Start difference. First operand 15476 states and 33440 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:57,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:57,070 INFO L93 Difference]: Finished difference Result 59785 states and 126923 transitions. [2022-09-16 10:48:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:48:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:48:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:57,203 INFO L225 Difference]: With dead ends: 59785 [2022-09-16 10:48:57,203 INFO L226 Difference]: Without dead ends: 59785 [2022-09-16 10:48:57,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1417, Invalid=4283, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:48:57,204 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 3086 mSDsluCounter, 11402 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 12361 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:57,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 12361 Invalid, 2915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59785 states. [2022-09-16 10:48:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59785 to 15460. [2022-09-16 10:48:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15414 states have (on average 2.1673803036200856) internal successors, (33408), 15459 states have internal predecessors, (33408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 33408 transitions. [2022-09-16 10:48:57,722 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 33408 transitions. Word has length 81 [2022-09-16 10:48:57,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:57,722 INFO L495 AbstractCegarLoop]: Abstraction has 15460 states and 33408 transitions. [2022-09-16 10:48:57,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 33408 transitions. [2022-09-16 10:48:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:48:57,726 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:57,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:57,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-09-16 10:48:57,727 INFO L420 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash 244966953, now seen corresponding path program 21 times [2022-09-16 10:48:57,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:57,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128366409] [2022-09-16 10:48:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:58,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128366409] [2022-09-16 10:48:58,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128366409] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:58,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:58,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:48:58,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775444766] [2022-09-16 10:48:58,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:58,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:58,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:58,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:58,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:58,123 INFO L87 Difference]: Start difference. First operand 15460 states and 33408 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:01,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:01,037 INFO L93 Difference]: Finished difference Result 59393 states and 126227 transitions. [2022-09-16 10:49:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:49:01,037 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:01,198 INFO L225 Difference]: With dead ends: 59393 [2022-09-16 10:49:01,198 INFO L226 Difference]: Without dead ends: 59393 [2022-09-16 10:49:01,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1239, Invalid=3873, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:49:01,199 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 2820 mSDsluCounter, 10812 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2820 SdHoareTripleChecker+Valid, 11764 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:01,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2820 Valid, 11764 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:49:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59393 states. [2022-09-16 10:49:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59393 to 15420. [2022-09-16 10:49:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15420 states, 15374 states have (on average 2.167815792897099) internal successors, (33328), 15419 states have internal predecessors, (33328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15420 states to 15420 states and 33328 transitions. [2022-09-16 10:49:01,892 INFO L78 Accepts]: Start accepts. Automaton has 15420 states and 33328 transitions. Word has length 81 [2022-09-16 10:49:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:01,892 INFO L495 AbstractCegarLoop]: Abstraction has 15420 states and 33328 transitions. [2022-09-16 10:49:01,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:01,893 INFO L276 IsEmpty]: Start isEmpty. Operand 15420 states and 33328 transitions. [2022-09-16 10:49:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:01,897 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:01,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:01,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-09-16 10:49:01,897 INFO L420 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1706602281, now seen corresponding path program 22 times [2022-09-16 10:49:01,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:01,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667223437] [2022-09-16 10:49:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667223437] [2022-09-16 10:49:02,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667223437] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:02,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:02,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:02,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118841034] [2022-09-16 10:49:02,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:02,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:02,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:02,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:02,131 INFO L87 Difference]: Start difference. First operand 15420 states and 33328 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:04,731 INFO L93 Difference]: Finished difference Result 60228 states and 127881 transitions. [2022-09-16 10:49:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:04,731 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:04,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:05,070 INFO L225 Difference]: With dead ends: 60228 [2022-09-16 10:49:05,070 INFO L226 Difference]: Without dead ends: 60228 [2022-09-16 10:49:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1081, Invalid=3475, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:05,070 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 2870 mSDsluCounter, 10753 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:05,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 11731 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60228 states. [2022-09-16 10:49:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60228 to 15412. [2022-09-16 10:49:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15412 states, 15366 states have (on average 2.1679031628270207) internal successors, (33312), 15411 states have internal predecessors, (33312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15412 states to 15412 states and 33312 transitions. [2022-09-16 10:49:05,676 INFO L78 Accepts]: Start accepts. Automaton has 15412 states and 33312 transitions. Word has length 81 [2022-09-16 10:49:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:05,676 INFO L495 AbstractCegarLoop]: Abstraction has 15412 states and 33312 transitions. [2022-09-16 10:49:05,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 15412 states and 33312 transitions. [2022-09-16 10:49:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:05,681 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:05,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:05,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-09-16 10:49:05,682 INFO L420 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2106301833, now seen corresponding path program 23 times [2022-09-16 10:49:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:05,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092919443] [2022-09-16 10:49:05,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:05,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:05,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:05,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092919443] [2022-09-16 10:49:05,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092919443] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:05,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:05,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:05,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031407077] [2022-09-16 10:49:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:05,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:05,998 INFO L87 Difference]: Start difference. First operand 15412 states and 33312 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:09,063 INFO L93 Difference]: Finished difference Result 64656 states and 137151 transitions. [2022-09-16 10:49:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:49:09,079 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:09,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:09,224 INFO L225 Difference]: With dead ends: 64656 [2022-09-16 10:49:09,224 INFO L226 Difference]: Without dead ends: 64656 [2022-09-16 10:49:09,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 967 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1143, Invalid=3827, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:49:09,224 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 3003 mSDsluCounter, 11353 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3003 SdHoareTripleChecker+Valid, 12254 SdHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:09,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3003 Valid, 12254 Invalid, 2962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2885 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:49:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64656 states. [2022-09-16 10:49:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64656 to 15436. [2022-09-16 10:49:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15436 states, 15390 states have (on average 2.1676413255360623) internal successors, (33360), 15435 states have internal predecessors, (33360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15436 states to 15436 states and 33360 transitions. [2022-09-16 10:49:09,738 INFO L78 Accepts]: Start accepts. Automaton has 15436 states and 33360 transitions. Word has length 81 [2022-09-16 10:49:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:09,738 INFO L495 AbstractCegarLoop]: Abstraction has 15436 states and 33360 transitions. [2022-09-16 10:49:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15436 states and 33360 transitions. [2022-09-16 10:49:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:09,742 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:09,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:09,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-09-16 10:49:09,743 INFO L420 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash -268513455, now seen corresponding path program 24 times [2022-09-16 10:49:09,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:09,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46677330] [2022-09-16 10:49:09,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:09,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:09,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:09,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46677330] [2022-09-16 10:49:09,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46677330] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:09,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:09,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:09,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732757448] [2022-09-16 10:49:09,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:09,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:09,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:09,968 INFO L87 Difference]: Start difference. First operand 15436 states and 33360 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:12,624 INFO L93 Difference]: Finished difference Result 55434 states and 117512 transitions. [2022-09-16 10:49:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:49:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:12,747 INFO L225 Difference]: With dead ends: 55434 [2022-09-16 10:49:12,747 INFO L226 Difference]: Without dead ends: 55434 [2022-09-16 10:49:12,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1220, Invalid=3750, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:49:12,748 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3107 mSDsluCounter, 10044 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 10962 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:12,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 10962 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:49:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55434 states. [2022-09-16 10:49:13,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55434 to 15491. [2022-09-16 10:49:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15491 states, 15445 states have (on average 2.1670443509226285) internal successors, (33470), 15490 states have internal predecessors, (33470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15491 states to 15491 states and 33470 transitions. [2022-09-16 10:49:13,194 INFO L78 Accepts]: Start accepts. Automaton has 15491 states and 33470 transitions. Word has length 81 [2022-09-16 10:49:13,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:13,195 INFO L495 AbstractCegarLoop]: Abstraction has 15491 states and 33470 transitions. [2022-09-16 10:49:13,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 15491 states and 33470 transitions. [2022-09-16 10:49:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:13,199 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:13,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:13,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-09-16 10:49:13,199 INFO L420 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:13,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 184257177, now seen corresponding path program 25 times [2022-09-16 10:49:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083139102] [2022-09-16 10:49:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:13,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:13,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083139102] [2022-09-16 10:49:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083139102] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:13,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:13,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:13,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588033760] [2022-09-16 10:49:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:13,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:13,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:13,472 INFO L87 Difference]: Start difference. First operand 15491 states and 33470 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:16,318 INFO L93 Difference]: Finished difference Result 55198 states and 117001 transitions. [2022-09-16 10:49:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:49:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:16,443 INFO L225 Difference]: With dead ends: 55198 [2022-09-16 10:49:16,443 INFO L226 Difference]: Without dead ends: 55198 [2022-09-16 10:49:16,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=999, Invalid=3161, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:49:16,444 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 2992 mSDsluCounter, 10666 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 11701 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:16,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 11701 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:49:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55198 states. [2022-09-16 10:49:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55198 to 15471. [2022-09-16 10:49:16,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15471 states, 15425 states have (on average 2.166871961102107) internal successors, (33424), 15470 states have internal predecessors, (33424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15471 states to 15471 states and 33424 transitions. [2022-09-16 10:49:17,003 INFO L78 Accepts]: Start accepts. Automaton has 15471 states and 33424 transitions. Word has length 81 [2022-09-16 10:49:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:17,003 INFO L495 AbstractCegarLoop]: Abstraction has 15471 states and 33424 transitions. [2022-09-16 10:49:17,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 15471 states and 33424 transitions. [2022-09-16 10:49:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:17,008 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:17,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:17,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-09-16 10:49:17,008 INFO L420 AbstractCegarLoop]: === Iteration 225 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash 510153298, now seen corresponding path program 7 times [2022-09-16 10:49:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:17,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693396774] [2022-09-16 10:49:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:17,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:17,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:17,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693396774] [2022-09-16 10:49:17,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693396774] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:17,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:17,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78281063] [2022-09-16 10:49:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:17,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:17,544 INFO L87 Difference]: Start difference. First operand 15471 states and 33424 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:23,877 INFO L93 Difference]: Finished difference Result 19702 states and 42040 transitions. [2022-09-16 10:49:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:49:23,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:23,909 INFO L225 Difference]: With dead ends: 19702 [2022-09-16 10:49:23,910 INFO L226 Difference]: Without dead ends: 19702 [2022-09-16 10:49:23,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2004, Invalid=5828, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:49:23,911 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 2140 mSDsluCounter, 6414 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:23,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 6910 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:49:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19702 states. [2022-09-16 10:49:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19702 to 15462. [2022-09-16 10:49:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15462 states, 15416 states have (on average 2.166969382459782) internal successors, (33406), 15461 states have internal predecessors, (33406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15462 states to 15462 states and 33406 transitions. [2022-09-16 10:49:24,157 INFO L78 Accepts]: Start accepts. Automaton has 15462 states and 33406 transitions. Word has length 81 [2022-09-16 10:49:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:24,157 INFO L495 AbstractCegarLoop]: Abstraction has 15462 states and 33406 transitions. [2022-09-16 10:49:24,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15462 states and 33406 transitions. [2022-09-16 10:49:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:24,162 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:24,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:24,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-09-16 10:49:24,162 INFO L420 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -247637623, now seen corresponding path program 26 times [2022-09-16 10:49:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:24,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021446173] [2022-09-16 10:49:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:24,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:24,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021446173] [2022-09-16 10:49:24,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021446173] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:24,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:24,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109183118] [2022-09-16 10:49:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:24,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:24,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:24,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:24,428 INFO L87 Difference]: Start difference. First operand 15462 states and 33406 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:27,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:27,978 INFO L93 Difference]: Finished difference Result 60819 states and 129078 transitions. [2022-09-16 10:49:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:49:27,979 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:28,111 INFO L225 Difference]: With dead ends: 60819 [2022-09-16 10:49:28,111 INFO L226 Difference]: Without dead ends: 60819 [2022-09-16 10:49:28,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1405, Invalid=4295, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:49:28,112 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 3089 mSDsluCounter, 11863 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3089 SdHoareTripleChecker+Valid, 12823 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:28,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3089 Valid, 12823 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2970 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:49:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60819 states. [2022-09-16 10:49:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60819 to 15446. [2022-09-16 10:49:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15446 states, 15400 states have (on average 2.1671428571428573) internal successors, (33374), 15445 states have internal predecessors, (33374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15446 states to 15446 states and 33374 transitions. [2022-09-16 10:49:28,593 INFO L78 Accepts]: Start accepts. Automaton has 15446 states and 33374 transitions. Word has length 81 [2022-09-16 10:49:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:28,593 INFO L495 AbstractCegarLoop]: Abstraction has 15446 states and 33374 transitions. [2022-09-16 10:49:28,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 15446 states and 33374 transitions. [2022-09-16 10:49:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:28,597 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:28,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:28,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-09-16 10:49:28,597 INFO L420 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:28,598 INFO L85 PathProgramCache]: Analyzing trace with hash 966400005, now seen corresponding path program 27 times [2022-09-16 10:49:28,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:28,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208864062] [2022-09-16 10:49:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:28,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:28,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:28,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208864062] [2022-09-16 10:49:28,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208864062] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:28,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:28,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:28,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888882061] [2022-09-16 10:49:28,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:28,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:28,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:28,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:28,866 INFO L87 Difference]: Start difference. First operand 15446 states and 33374 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:31,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:31,874 INFO L93 Difference]: Finished difference Result 60427 states and 128382 transitions. [2022-09-16 10:49:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:49:31,874 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:31,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:32,024 INFO L225 Difference]: With dead ends: 60427 [2022-09-16 10:49:32,024 INFO L226 Difference]: Without dead ends: 60427 [2022-09-16 10:49:32,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1227, Invalid=3885, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:49:32,025 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 3470 mSDsluCounter, 10048 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3470 SdHoareTripleChecker+Valid, 11001 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:32,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3470 Valid, 11001 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:49:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60427 states. [2022-09-16 10:49:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60427 to 15406. [2022-09-16 10:49:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15406 states, 15360 states have (on average 2.167578125) internal successors, (33294), 15405 states have internal predecessors, (33294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15406 states to 15406 states and 33294 transitions. [2022-09-16 10:49:32,637 INFO L78 Accepts]: Start accepts. Automaton has 15406 states and 33294 transitions. Word has length 81 [2022-09-16 10:49:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:32,637 INFO L495 AbstractCegarLoop]: Abstraction has 15406 states and 33294 transitions. [2022-09-16 10:49:32,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 15406 states and 33294 transitions. [2022-09-16 10:49:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:32,642 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:32,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:32,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-09-16 10:49:32,642 INFO L420 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash -985169229, now seen corresponding path program 28 times [2022-09-16 10:49:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:32,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877603456] [2022-09-16 10:49:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:32,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:32,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877603456] [2022-09-16 10:49:32,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877603456] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:32,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:32,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:32,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918917439] [2022-09-16 10:49:32,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:32,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:32,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:32,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:32,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:32,911 INFO L87 Difference]: Start difference. First operand 15406 states and 33294 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:35,447 INFO L93 Difference]: Finished difference Result 61943 states and 131670 transitions. [2022-09-16 10:49:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:35,587 INFO L225 Difference]: With dead ends: 61943 [2022-09-16 10:49:35,587 INFO L226 Difference]: Without dead ends: 61943 [2022-09-16 10:49:35,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1069, Invalid=3487, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:35,587 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 3176 mSDsluCounter, 10693 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3176 SdHoareTripleChecker+Valid, 11670 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:35,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3176 Valid, 11670 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:49:35,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61943 states. [2022-09-16 10:49:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61943 to 15390. [2022-09-16 10:49:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15390 states, 15344 states have (on average 2.167752867570386) internal successors, (33262), 15389 states have internal predecessors, (33262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15390 states to 15390 states and 33262 transitions. [2022-09-16 10:49:36,178 INFO L78 Accepts]: Start accepts. Automaton has 15390 states and 33262 transitions. Word has length 81 [2022-09-16 10:49:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:36,178 INFO L495 AbstractCegarLoop]: Abstraction has 15390 states and 33262 transitions. [2022-09-16 10:49:36,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 15390 states and 33262 transitions. [2022-09-16 10:49:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:36,183 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:36,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:36,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-09-16 10:49:36,183 INFO L420 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1378493239, now seen corresponding path program 29 times [2022-09-16 10:49:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:36,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664909413] [2022-09-16 10:49:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:36,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:36,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:36,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664909413] [2022-09-16 10:49:36,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664909413] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:36,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:36,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:36,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524271164] [2022-09-16 10:49:36,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:36,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:36,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:36,400 INFO L87 Difference]: Start difference. First operand 15390 states and 33262 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:38,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:38,576 INFO L93 Difference]: Finished difference Result 46725 states and 98650 transitions. [2022-09-16 10:49:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:38,577 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:38,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:38,664 INFO L225 Difference]: With dead ends: 46725 [2022-09-16 10:49:38,664 INFO L226 Difference]: Without dead ends: 46725 [2022-09-16 10:49:38,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1021, Invalid=3535, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:38,665 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 2925 mSDsluCounter, 10628 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 11528 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:38,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 11528 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:49:38,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46725 states. [2022-09-16 10:49:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46725 to 15462. [2022-09-16 10:49:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15462 states, 15416 states have (on average 2.1674883238194083) internal successors, (33414), 15461 states have internal predecessors, (33414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15462 states to 15462 states and 33414 transitions. [2022-09-16 10:49:39,126 INFO L78 Accepts]: Start accepts. Automaton has 15462 states and 33414 transitions. Word has length 81 [2022-09-16 10:49:39,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:39,126 INFO L495 AbstractCegarLoop]: Abstraction has 15462 states and 33414 transitions. [2022-09-16 10:49:39,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15462 states and 33414 transitions. [2022-09-16 10:49:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:39,130 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:39,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:39,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-09-16 10:49:39,131 INFO L420 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:39,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:39,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1856065647, now seen corresponding path program 30 times [2022-09-16 10:49:39,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:39,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140313926] [2022-09-16 10:49:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:39,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:39,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140313926] [2022-09-16 10:49:39,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140313926] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:39,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:39,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655642584] [2022-09-16 10:49:39,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:39,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:39,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:39,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:39,314 INFO L87 Difference]: Start difference. First operand 15462 states and 33414 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:41,155 INFO L93 Difference]: Finished difference Result 27673 states and 58593 transitions. [2022-09-16 10:49:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:49:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:41,215 INFO L225 Difference]: With dead ends: 27673 [2022-09-16 10:49:41,215 INFO L226 Difference]: Without dead ends: 27673 [2022-09-16 10:49:41,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=912, Invalid=3248, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:49:41,215 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 2647 mSDsluCounter, 9907 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 10807 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:41,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 10807 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:49:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27673 states. [2022-09-16 10:49:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27673 to 15381. [2022-09-16 10:49:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15381 states, 15335 states have (on average 2.1671992174763615) internal successors, (33234), 15380 states have internal predecessors, (33234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 33234 transitions. [2022-09-16 10:49:41,545 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 33234 transitions. Word has length 81 [2022-09-16 10:49:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:41,545 INFO L495 AbstractCegarLoop]: Abstraction has 15381 states and 33234 transitions. [2022-09-16 10:49:41,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 33234 transitions. [2022-09-16 10:49:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:41,550 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:41,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-09-16 10:49:41,550 INFO L420 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:41,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1918323917, now seen corresponding path program 31 times [2022-09-16 10:49:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:41,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523485549] [2022-09-16 10:49:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:41,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:41,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523485549] [2022-09-16 10:49:41,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523485549] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:41,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:41,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:41,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058597351] [2022-09-16 10:49:41,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:41,791 INFO L87 Difference]: Start difference. First operand 15381 states and 33234 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:44,500 INFO L93 Difference]: Finished difference Result 47729 states and 101695 transitions. [2022-09-16 10:49:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:44,500 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:44,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:44,594 INFO L225 Difference]: With dead ends: 47729 [2022-09-16 10:49:44,594 INFO L226 Difference]: Without dead ends: 47729 [2022-09-16 10:49:44,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1022, Invalid=3534, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:44,595 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 2715 mSDsluCounter, 11580 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 12518 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:44,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 12518 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:49:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47729 states. [2022-09-16 10:49:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47729 to 15318. [2022-09-16 10:49:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15318 states, 15272 states have (on average 2.1674960712414877) internal successors, (33102), 15317 states have internal predecessors, (33102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15318 states to 15318 states and 33102 transitions. [2022-09-16 10:49:45,056 INFO L78 Accepts]: Start accepts. Automaton has 15318 states and 33102 transitions. Word has length 81 [2022-09-16 10:49:45,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:45,056 INFO L495 AbstractCegarLoop]: Abstraction has 15318 states and 33102 transitions. [2022-09-16 10:49:45,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 15318 states and 33102 transitions. [2022-09-16 10:49:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:45,060 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:45,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:45,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-09-16 10:49:45,060 INFO L420 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -482086349, now seen corresponding path program 32 times [2022-09-16 10:49:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:45,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99765474] [2022-09-16 10:49:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:45,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:45,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99765474] [2022-09-16 10:49:45,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99765474] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:45,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:45,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555469176] [2022-09-16 10:49:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:45,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:45,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:45,288 INFO L87 Difference]: Start difference. First operand 15318 states and 33102 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:48,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:48,072 INFO L93 Difference]: Finished difference Result 48729 states and 104054 transitions. [2022-09-16 10:49:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:48,168 INFO L225 Difference]: With dead ends: 48729 [2022-09-16 10:49:48,168 INFO L226 Difference]: Without dead ends: 48729 [2022-09-16 10:49:48,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1050, Invalid=3506, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:48,169 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 2433 mSDsluCounter, 11775 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 12712 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:48,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 12712 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:49:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48729 states. [2022-09-16 10:49:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48729 to 15246. [2022-09-16 10:49:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15246 states, 15200 states have (on average 2.1681578947368423) internal successors, (32956), 15245 states have internal predecessors, (32956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15246 states to 15246 states and 32956 transitions. [2022-09-16 10:49:48,612 INFO L78 Accepts]: Start accepts. Automaton has 15246 states and 32956 transitions. Word has length 81 [2022-09-16 10:49:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:48,612 INFO L495 AbstractCegarLoop]: Abstraction has 15246 states and 32956 transitions. [2022-09-16 10:49:48,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:48,612 INFO L276 IsEmpty]: Start isEmpty. Operand 15246 states and 32956 transitions. [2022-09-16 10:49:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:48,616 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:48,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:48,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-09-16 10:49:48,616 INFO L420 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1355702029, now seen corresponding path program 33 times [2022-09-16 10:49:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:48,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141573022] [2022-09-16 10:49:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:48,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:48,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141573022] [2022-09-16 10:49:48,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141573022] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:48,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:48,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:48,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609412644] [2022-09-16 10:49:48,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:48,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:48,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:48,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:48,878 INFO L87 Difference]: Start difference. First operand 15246 states and 32956 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:51,733 INFO L93 Difference]: Finished difference Result 39537 states and 84521 transitions. [2022-09-16 10:49:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:49:51,733 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:51,811 INFO L225 Difference]: With dead ends: 39537 [2022-09-16 10:49:51,812 INFO L226 Difference]: Without dead ends: 39537 [2022-09-16 10:49:51,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1128, Invalid=3428, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:51,812 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 2516 mSDsluCounter, 10385 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 11306 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:51,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 11306 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:49:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39537 states. [2022-09-16 10:49:52,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39537 to 15237. [2022-09-16 10:49:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15237 states, 15191 states have (on average 2.16812586399842) internal successors, (32936), 15236 states have internal predecessors, (32936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15237 states to 15237 states and 32936 transitions. [2022-09-16 10:49:52,201 INFO L78 Accepts]: Start accepts. Automaton has 15237 states and 32936 transitions. Word has length 81 [2022-09-16 10:49:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:52,201 INFO L495 AbstractCegarLoop]: Abstraction has 15237 states and 32936 transitions. [2022-09-16 10:49:52,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 15237 states and 32936 transitions. [2022-09-16 10:49:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:52,206 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:52,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:52,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-09-16 10:49:52,206 INFO L420 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:52,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1808472661, now seen corresponding path program 34 times [2022-09-16 10:49:52,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:52,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433742873] [2022-09-16 10:49:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:52,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:52,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:52,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433742873] [2022-09-16 10:49:52,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433742873] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:52,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:52,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:49:52,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851449626] [2022-09-16 10:49:52,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:52,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:49:52,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:49:52,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:49:52,468 INFO L87 Difference]: Start difference. First operand 15237 states and 32936 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:54,797 INFO L93 Difference]: Finished difference Result 39301 states and 84010 transitions. [2022-09-16 10:49:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:49:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:49:54,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:54,875 INFO L225 Difference]: With dead ends: 39301 [2022-09-16 10:49:54,876 INFO L226 Difference]: Without dead ends: 39301 [2022-09-16 10:49:54,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=917, Invalid=2865, Unknown=0, NotChecked=0, Total=3782 [2022-09-16 10:49:54,876 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 2605 mSDsluCounter, 11668 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 12706 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:54,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 12706 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:54,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39301 states. [2022-09-16 10:49:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39301 to 15199. [2022-09-16 10:49:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15199 states, 15153 states have (on average 2.1680855276182935) internal successors, (32853), 15198 states have internal predecessors, (32853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15199 states to 15199 states and 32853 transitions. [2022-09-16 10:49:55,435 INFO L78 Accepts]: Start accepts. Automaton has 15199 states and 32853 transitions. Word has length 81 [2022-09-16 10:49:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:55,435 INFO L495 AbstractCegarLoop]: Abstraction has 15199 states and 32853 transitions. [2022-09-16 10:49:55,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 15199 states and 32853 transitions. [2022-09-16 10:49:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:49:55,439 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:55,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:55,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-09-16 10:49:55,439 INFO L420 AbstractCegarLoop]: === Iteration 235 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2134368782, now seen corresponding path program 8 times [2022-09-16 10:49:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:55,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991279329] [2022-09-16 10:49:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:55,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:55,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991279329] [2022-09-16 10:49:55,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991279329] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:55,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:55,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:55,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106104872] [2022-09-16 10:49:55,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:55,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:55,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:55,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:55,771 INFO L87 Difference]: Start difference. First operand 15199 states and 32853 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:00,984 INFO L93 Difference]: Finished difference Result 19007 states and 40602 transitions. [2022-09-16 10:50:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-16 10:50:00,984 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:00,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:01,016 INFO L225 Difference]: With dead ends: 19007 [2022-09-16 10:50:01,016 INFO L226 Difference]: Without dead ends: 19007 [2022-09-16 10:50:01,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1775, Invalid=5197, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:50:01,017 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 1891 mSDsluCounter, 5454 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 5958 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:01,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 5958 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:50:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19007 states. [2022-09-16 10:50:01,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19007 to 15190. [2022-09-16 10:50:01,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15190 states, 15144 states have (on average 2.1681854199683044) internal successors, (32835), 15189 states have internal predecessors, (32835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15190 states to 15190 states and 32835 transitions. [2022-09-16 10:50:01,263 INFO L78 Accepts]: Start accepts. Automaton has 15190 states and 32835 transitions. Word has length 81 [2022-09-16 10:50:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:01,263 INFO L495 AbstractCegarLoop]: Abstraction has 15190 states and 32835 transitions. [2022-09-16 10:50:01,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 15190 states and 32835 transitions. [2022-09-16 10:50:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:01,268 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:01,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:01,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-09-16 10:50:01,268 INFO L420 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:01,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1376577861, now seen corresponding path program 35 times [2022-09-16 10:50:01,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:01,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039910521] [2022-09-16 10:50:01,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:01,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:01,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:01,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039910521] [2022-09-16 10:50:01,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039910521] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:01,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:01,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504460819] [2022-09-16 10:50:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:01,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:01,507 INFO L87 Difference]: Start difference. First operand 15190 states and 32835 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:04,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:04,214 INFO L93 Difference]: Finished difference Result 44944 states and 96137 transitions. [2022-09-16 10:50:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-09-16 10:50:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:04,305 INFO L225 Difference]: With dead ends: 44944 [2022-09-16 10:50:04,305 INFO L226 Difference]: Without dead ends: 44944 [2022-09-16 10:50:04,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1307, Invalid=3949, Unknown=0, NotChecked=0, Total=5256 [2022-09-16 10:50:04,306 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 2671 mSDsluCounter, 11022 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2671 SdHoareTripleChecker+Valid, 11984 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:04,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2671 Valid, 11984 Invalid, 2847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44944 states. [2022-09-16 10:50:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44944 to 15160. [2022-09-16 10:50:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15160 states, 15114 states have (on average 2.168519253672092) internal successors, (32775), 15159 states have internal predecessors, (32775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15160 states to 15160 states and 32775 transitions. [2022-09-16 10:50:04,738 INFO L78 Accepts]: Start accepts. Automaton has 15160 states and 32775 transitions. Word has length 81 [2022-09-16 10:50:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:04,738 INFO L495 AbstractCegarLoop]: Abstraction has 15160 states and 32775 transitions. [2022-09-16 10:50:04,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15160 states and 32775 transitions. [2022-09-16 10:50:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:04,742 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:04,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:04,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-09-16 10:50:04,742 INFO L420 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1704351807, now seen corresponding path program 36 times [2022-09-16 10:50:04,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:04,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269687944] [2022-09-16 10:50:04,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:04,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:04,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:04,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269687944] [2022-09-16 10:50:04,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269687944] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:04,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:04,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296729689] [2022-09-16 10:50:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:04,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:04,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:04,965 INFO L87 Difference]: Start difference. First operand 15160 states and 32775 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:07,365 INFO L93 Difference]: Finished difference Result 44556 states and 95449 transitions. [2022-09-16 10:50:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:50:07,365 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:07,467 INFO L225 Difference]: With dead ends: 44556 [2022-09-16 10:50:07,468 INFO L226 Difference]: Without dead ends: 44556 [2022-09-16 10:50:07,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1133, Invalid=3559, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:50:07,468 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 2517 mSDsluCounter, 10387 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 11342 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:07,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 11342 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44556 states. [2022-09-16 10:50:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44556 to 15130. [2022-09-16 10:50:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15130 states, 15084 states have (on average 2.168854415274463) internal successors, (32715), 15129 states have internal predecessors, (32715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15130 states to 15130 states and 32715 transitions. [2022-09-16 10:50:07,943 INFO L78 Accepts]: Start accepts. Automaton has 15130 states and 32715 transitions. Word has length 81 [2022-09-16 10:50:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:07,943 INFO L495 AbstractCegarLoop]: Abstraction has 15130 states and 32715 transitions. [2022-09-16 10:50:07,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 15130 states and 32715 transitions. [2022-09-16 10:50:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:07,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:07,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-09-16 10:50:07,948 INFO L420 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:07,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:07,948 INFO L85 PathProgramCache]: Analyzing trace with hash 639046255, now seen corresponding path program 37 times [2022-09-16 10:50:07,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:07,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596425449] [2022-09-16 10:50:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:07,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:08,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:08,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596425449] [2022-09-16 10:50:08,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596425449] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:08,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:08,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:08,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602823671] [2022-09-16 10:50:08,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:08,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:08,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:08,202 INFO L87 Difference]: Start difference. First operand 15130 states and 32715 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:10,571 INFO L93 Difference]: Finished difference Result 45401 states and 97123 transitions. [2022-09-16 10:50:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:50:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:10,670 INFO L225 Difference]: With dead ends: 45401 [2022-09-16 10:50:10,670 INFO L226 Difference]: Without dead ends: 45401 [2022-09-16 10:50:10,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=981, Invalid=3179, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:50:10,671 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 2579 mSDsluCounter, 10499 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 11479 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:10,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 11479 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2661 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45401 states. [2022-09-16 10:50:11,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45401 to 14778. [2022-09-16 10:50:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14778 states, 14732 states have (on average 2.1673228346456694) internal successors, (31929), 14777 states have internal predecessors, (31929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14778 states to 14778 states and 31929 transitions. [2022-09-16 10:50:11,116 INFO L78 Accepts]: Start accepts. Automaton has 14778 states and 31929 transitions. Word has length 81 [2022-09-16 10:50:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:11,116 INFO L495 AbstractCegarLoop]: Abstraction has 14778 states and 31929 transitions. [2022-09-16 10:50:11,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 14778 states and 31929 transitions. [2022-09-16 10:50:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:11,120 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:11,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:11,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-09-16 10:50:11,121 INFO L420 AbstractCegarLoop]: === Iteration 239 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:11,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:11,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1042631726, now seen corresponding path program 9 times [2022-09-16 10:50:11,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:11,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490355013] [2022-09-16 10:50:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:11,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:11,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:11,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:11,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490355013] [2022-09-16 10:50:11,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490355013] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:11,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:11,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:50:11,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507053311] [2022-09-16 10:50:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:11,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:50:11,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:50:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:50:11,536 INFO L87 Difference]: Start difference. First operand 14778 states and 31929 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:17,277 INFO L93 Difference]: Finished difference Result 20167 states and 42894 transitions. [2022-09-16 10:50:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-09-16 10:50:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:17,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:17,315 INFO L225 Difference]: With dead ends: 20167 [2022-09-16 10:50:17,315 INFO L226 Difference]: Without dead ends: 20167 [2022-09-16 10:50:17,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2254 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2545, Invalid=7757, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:50:17,317 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 2181 mSDsluCounter, 6442 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 6982 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:17,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 6982 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:17,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20167 states. [2022-09-16 10:50:17,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20167 to 14973. [2022-09-16 10:50:17,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14973 states, 14927 states have (on average 2.1655389562537684) internal successors, (32325), 14972 states have internal predecessors, (32325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14973 states to 14973 states and 32325 transitions. [2022-09-16 10:50:17,592 INFO L78 Accepts]: Start accepts. Automaton has 14973 states and 32325 transitions. Word has length 81 [2022-09-16 10:50:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:17,593 INFO L495 AbstractCegarLoop]: Abstraction has 14973 states and 32325 transitions. [2022-09-16 10:50:17,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 14973 states and 32325 transitions. [2022-09-16 10:50:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:17,597 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:17,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:17,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-09-16 10:50:17,598 INFO L420 AbstractCegarLoop]: === Iteration 240 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash 245735312, now seen corresponding path program 10 times [2022-09-16 10:50:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:17,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063463691] [2022-09-16 10:50:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:17,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:17,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063463691] [2022-09-16 10:50:17,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063463691] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:17,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:17,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:50:17,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172579500] [2022-09-16 10:50:17,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:17,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:50:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:50:17,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:50:17,952 INFO L87 Difference]: Start difference. First operand 14973 states and 32325 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:24,979 INFO L93 Difference]: Finished difference Result 20809 states and 44190 transitions. [2022-09-16 10:50:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-09-16 10:50:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:25,014 INFO L225 Difference]: With dead ends: 20809 [2022-09-16 10:50:25,015 INFO L226 Difference]: Without dead ends: 20809 [2022-09-16 10:50:25,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2904 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2795, Invalid=9195, Unknown=0, NotChecked=0, Total=11990 [2022-09-16 10:50:25,016 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 2473 mSDsluCounter, 6055 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 6473 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:25,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2473 Valid, 6473 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:50:25,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20809 states. [2022-09-16 10:50:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20809 to 14880. [2022-09-16 10:50:25,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14880 states, 14834 states have (on average 2.166172306862613) internal successors, (32133), 14879 states have internal predecessors, (32133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14880 states to 14880 states and 32133 transitions. [2022-09-16 10:50:25,272 INFO L78 Accepts]: Start accepts. Automaton has 14880 states and 32133 transitions. Word has length 81 [2022-09-16 10:50:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:25,272 INFO L495 AbstractCegarLoop]: Abstraction has 14880 states and 32133 transitions. [2022-09-16 10:50:25,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:25,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14880 states and 32133 transitions. [2022-09-16 10:50:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:25,276 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:25,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:25,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-09-16 10:50:25,277 INFO L420 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:25,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1933282829, now seen corresponding path program 38 times [2022-09-16 10:50:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:25,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956818802] [2022-09-16 10:50:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:25,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:25,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956818802] [2022-09-16 10:50:25,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956818802] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:25,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:25,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714779717] [2022-09-16 10:50:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:25,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:25,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:25,505 INFO L87 Difference]: Start difference. First operand 14880 states and 32133 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:27,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:27,196 INFO L93 Difference]: Finished difference Result 49708 states and 105268 transitions. [2022-09-16 10:50:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-16 10:50:27,197 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:27,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:27,332 INFO L225 Difference]: With dead ends: 49708 [2022-09-16 10:50:27,332 INFO L226 Difference]: Without dead ends: 49708 [2022-09-16 10:50:27,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=729, Invalid=2463, Unknown=0, NotChecked=0, Total=3192 [2022-09-16 10:50:27,333 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 3254 mSDsluCounter, 10289 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 11132 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:27,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 11132 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:50:27,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49708 states. [2022-09-16 10:50:27,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49708 to 17628. [2022-09-16 10:50:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17628 states, 17582 states have (on average 2.195370265043795) internal successors, (38599), 17627 states have internal predecessors, (38599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17628 states to 17628 states and 38599 transitions. [2022-09-16 10:50:27,876 INFO L78 Accepts]: Start accepts. Automaton has 17628 states and 38599 transitions. Word has length 81 [2022-09-16 10:50:27,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:27,877 INFO L495 AbstractCegarLoop]: Abstraction has 17628 states and 38599 transitions. [2022-09-16 10:50:27,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:27,877 INFO L276 IsEmpty]: Start isEmpty. Operand 17628 states and 38599 transitions. [2022-09-16 10:50:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:27,882 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:27,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:27,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-09-16 10:50:27,882 INFO L420 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:27,882 INFO L85 PathProgramCache]: Analyzing trace with hash 617245599, now seen corresponding path program 39 times [2022-09-16 10:50:27,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:27,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874636710] [2022-09-16 10:50:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:27,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:28,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:28,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874636710] [2022-09-16 10:50:28,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874636710] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:28,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:28,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628205708] [2022-09-16 10:50:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:28,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:28,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:28,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:28,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:28,061 INFO L87 Difference]: Start difference. First operand 17628 states and 38599 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:30,434 INFO L93 Difference]: Finished difference Result 54848 states and 115838 transitions. [2022-09-16 10:50:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:50:30,434 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:30,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:30,576 INFO L225 Difference]: With dead ends: 54848 [2022-09-16 10:50:30,577 INFO L226 Difference]: Without dead ends: 54848 [2022-09-16 10:50:30,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1154, Invalid=3538, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:50:30,577 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 3842 mSDsluCounter, 11711 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3842 SdHoareTripleChecker+Valid, 12594 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:30,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3842 Valid, 12594 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:50:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54848 states. [2022-09-16 10:50:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54848 to 16594. [2022-09-16 10:50:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16594 states, 16548 states have (on average 2.1704133430021755) internal successors, (35916), 16593 states have internal predecessors, (35916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16594 states to 16594 states and 35916 transitions. [2022-09-16 10:50:31,403 INFO L78 Accepts]: Start accepts. Automaton has 16594 states and 35916 transitions. Word has length 81 [2022-09-16 10:50:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:31,403 INFO L495 AbstractCegarLoop]: Abstraction has 16594 states and 35916 transitions. [2022-09-16 10:50:31,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 16594 states and 35916 transitions. [2022-09-16 10:50:31,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:31,409 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:31,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:31,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-09-16 10:50:31,409 INFO L420 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:31,410 INFO L85 PathProgramCache]: Analyzing trace with hash 329596109, now seen corresponding path program 40 times [2022-09-16 10:50:31,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:31,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4483076] [2022-09-16 10:50:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:31,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:31,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4483076] [2022-09-16 10:50:31,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4483076] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:31,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:31,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345390685] [2022-09-16 10:50:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:31,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:31,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:31,637 INFO L87 Difference]: Start difference. First operand 16594 states and 35916 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:33,870 INFO L93 Difference]: Finished difference Result 57048 states and 120763 transitions. [2022-09-16 10:50:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:50:33,870 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:34,013 INFO L225 Difference]: With dead ends: 57048 [2022-09-16 10:50:34,013 INFO L226 Difference]: Without dead ends: 57048 [2022-09-16 10:50:34,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1261, Invalid=3851, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:50:34,014 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 3151 mSDsluCounter, 10158 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 11079 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:34,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 11079 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:50:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57048 states. [2022-09-16 10:50:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57048 to 16686. [2022-09-16 10:50:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16686 states, 16640 states have (on average 2.1704927884615386) internal successors, (36117), 16685 states have internal predecessors, (36117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16686 states to 16686 states and 36117 transitions. [2022-09-16 10:50:34,708 INFO L78 Accepts]: Start accepts. Automaton has 16686 states and 36117 transitions. Word has length 81 [2022-09-16 10:50:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:34,708 INFO L495 AbstractCegarLoop]: Abstraction has 16686 states and 36117 transitions. [2022-09-16 10:50:34,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 16686 states and 36117 transitions. [2022-09-16 10:50:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:34,714 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:34,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:34,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-09-16 10:50:34,714 INFO L420 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash 782366741, now seen corresponding path program 41 times [2022-09-16 10:50:34,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:34,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761982290] [2022-09-16 10:50:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:34,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761982290] [2022-09-16 10:50:34,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761982290] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:34,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:34,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876649613] [2022-09-16 10:50:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:34,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:34,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:34,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:34,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:34,943 INFO L87 Difference]: Start difference. First operand 16686 states and 36117 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:37,820 INFO L93 Difference]: Finished difference Result 65984 states and 139586 transitions. [2022-09-16 10:50:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:50:37,821 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:37,972 INFO L225 Difference]: With dead ends: 65984 [2022-09-16 10:50:37,972 INFO L226 Difference]: Without dead ends: 65984 [2022-09-16 10:50:37,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1249, Invalid=3863, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:50:37,973 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 3182 mSDsluCounter, 11039 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3182 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:37,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3182 Valid, 12124 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:50:38,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65984 states. [2022-09-16 10:50:38,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65984 to 16528. [2022-09-16 10:50:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16528 states, 16482 states have (on average 2.1703070015774784) internal successors, (35771), 16527 states have internal predecessors, (35771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16528 states to 16528 states and 35771 transitions. [2022-09-16 10:50:38,553 INFO L78 Accepts]: Start accepts. Automaton has 16528 states and 35771 transitions. Word has length 81 [2022-09-16 10:50:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:38,553 INFO L495 AbstractCegarLoop]: Abstraction has 16528 states and 35771 transitions. [2022-09-16 10:50:38,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 16528 states and 35771 transitions. [2022-09-16 10:50:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:38,558 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:38,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:38,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-09-16 10:50:38,558 INFO L420 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:38,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 974205859, now seen corresponding path program 42 times [2022-09-16 10:50:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:38,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030644422] [2022-09-16 10:50:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:38,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:38,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:38,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030644422] [2022-09-16 10:50:38,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030644422] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:38,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:38,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802645232] [2022-09-16 10:50:38,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:38,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:38,966 INFO L87 Difference]: Start difference. First operand 16528 states and 35771 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:41,855 INFO L93 Difference]: Finished difference Result 68868 states and 145884 transitions. [2022-09-16 10:50:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:50:41,855 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:41,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:42,002 INFO L225 Difference]: With dead ends: 68868 [2022-09-16 10:50:42,003 INFO L226 Difference]: Without dead ends: 68868 [2022-09-16 10:50:42,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1182 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1411, Invalid=4289, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:50:42,003 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 3219 mSDsluCounter, 12129 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 13057 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:42,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3219 Valid, 13057 Invalid, 2723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:42,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68868 states. [2022-09-16 10:50:42,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68868 to 16553. [2022-09-16 10:50:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16553 states, 16507 states have (on average 2.1700490700914763) internal successors, (35821), 16552 states have internal predecessors, (35821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16553 states to 16553 states and 35821 transitions. [2022-09-16 10:50:42,596 INFO L78 Accepts]: Start accepts. Automaton has 16553 states and 35821 transitions. Word has length 81 [2022-09-16 10:50:42,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:42,596 INFO L495 AbstractCegarLoop]: Abstraction has 16553 states and 35821 transitions. [2022-09-16 10:50:42,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 16553 states and 35821 transitions. [2022-09-16 10:50:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:42,601 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:42,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:42,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-09-16 10:50:42,601 INFO L420 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:42,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:42,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1426976491, now seen corresponding path program 43 times [2022-09-16 10:50:42,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:42,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774531561] [2022-09-16 10:50:42,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:42,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:42,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774531561] [2022-09-16 10:50:42,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774531561] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:42,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:42,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249630668] [2022-09-16 10:50:42,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:42,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:42,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:42,868 INFO L87 Difference]: Start difference. First operand 16553 states and 35821 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:45,575 INFO L93 Difference]: Finished difference Result 68748 states and 145618 transitions. [2022-09-16 10:50:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:50:45,575 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:45,736 INFO L225 Difference]: With dead ends: 68748 [2022-09-16 10:50:45,736 INFO L226 Difference]: Without dead ends: 68748 [2022-09-16 10:50:45,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1235, Invalid=3877, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:50:45,737 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 3083 mSDsluCounter, 11463 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 12550 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:45,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 12550 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:50:45,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68748 states. [2022-09-16 10:50:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68748 to 16553. [2022-09-16 10:50:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16553 states, 16507 states have (on average 2.1700490700914763) internal successors, (35821), 16552 states have internal predecessors, (35821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16553 states to 16553 states and 35821 transitions. [2022-09-16 10:50:46,463 INFO L78 Accepts]: Start accepts. Automaton has 16553 states and 35821 transitions. Word has length 81 [2022-09-16 10:50:46,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:46,463 INFO L495 AbstractCegarLoop]: Abstraction has 16553 states and 35821 transitions. [2022-09-16 10:50:46,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:46,464 INFO L276 IsEmpty]: Start isEmpty. Operand 16553 states and 35821 transitions. [2022-09-16 10:50:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:46,468 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:46,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-09-16 10:50:46,469 INFO L420 AbstractCegarLoop]: === Iteration 247 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1752872612, now seen corresponding path program 11 times [2022-09-16 10:50:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:46,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848961093] [2022-09-16 10:50:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:46,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:46,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848961093] [2022-09-16 10:50:46,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848961093] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:46,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:46,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:50:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704080016] [2022-09-16 10:50:46,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:46,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:50:46,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:50:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:50:46,801 INFO L87 Difference]: Start difference. First operand 16553 states and 35821 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:52,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:52,563 INFO L93 Difference]: Finished difference Result 21312 states and 45530 transitions. [2022-09-16 10:50:52,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-09-16 10:50:52,564 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:52,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:52,601 INFO L225 Difference]: With dead ends: 21312 [2022-09-16 10:50:52,602 INFO L226 Difference]: Without dead ends: 21312 [2022-09-16 10:50:52,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2060, Invalid=6130, Unknown=0, NotChecked=0, Total=8190 [2022-09-16 10:50:52,602 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2105 mSDsluCounter, 6472 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 6947 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:52,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 6947 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:50:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21312 states. [2022-09-16 10:50:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21312 to 16544. [2022-09-16 10:50:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16544 states, 16498 states have (on average 2.1701418353739848) internal successors, (35803), 16543 states have internal predecessors, (35803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16544 states to 16544 states and 35803 transitions. [2022-09-16 10:50:52,911 INFO L78 Accepts]: Start accepts. Automaton has 16544 states and 35803 transitions. Word has length 81 [2022-09-16 10:50:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:52,911 INFO L495 AbstractCegarLoop]: Abstraction has 16544 states and 35803 transitions. [2022-09-16 10:50:52,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 16544 states and 35803 transitions. [2022-09-16 10:50:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:52,917 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:52,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:52,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-09-16 10:50:52,917 INFO L420 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:52,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash 111526431, now seen corresponding path program 44 times [2022-09-16 10:50:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:52,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531681342] [2022-09-16 10:50:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:53,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:53,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531681342] [2022-09-16 10:50:53,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531681342] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:53,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:53,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:53,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401763088] [2022-09-16 10:50:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:53,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:53,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:53,092 INFO L87 Difference]: Start difference. First operand 16544 states and 35803 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:56,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:56,019 INFO L93 Difference]: Finished difference Result 61705 states and 130555 transitions. [2022-09-16 10:50:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-09-16 10:50:56,020 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:50:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:56,166 INFO L225 Difference]: With dead ends: 61705 [2022-09-16 10:50:56,166 INFO L226 Difference]: Without dead ends: 61705 [2022-09-16 10:50:56,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1441, Invalid=4411, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:50:56,167 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 3093 mSDsluCounter, 11839 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3093 SdHoareTripleChecker+Valid, 12786 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:56,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3093 Valid, 12786 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:50:56,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61705 states. [2022-09-16 10:50:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61705 to 16326. [2022-09-16 10:50:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16326 states, 16280 states have (on average 2.1697174447174445) internal successors, (35323), 16325 states have internal predecessors, (35323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16326 states to 16326 states and 35323 transitions. [2022-09-16 10:50:56,824 INFO L78 Accepts]: Start accepts. Automaton has 16326 states and 35323 transitions. Word has length 81 [2022-09-16 10:50:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:56,824 INFO L495 AbstractCegarLoop]: Abstraction has 16326 states and 35323 transitions. [2022-09-16 10:50:56,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 16326 states and 35323 transitions. [2022-09-16 10:50:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:50:56,829 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:56,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:56,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-09-16 10:50:56,829 INFO L420 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1256998553, now seen corresponding path program 45 times [2022-09-16 10:50:56,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:56,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877713275] [2022-09-16 10:50:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:56,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:50:57,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:57,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877713275] [2022-09-16 10:50:57,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877713275] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:57,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:57,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:50:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677862644] [2022-09-16 10:50:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:57,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:50:57,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:57,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:50:57,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:50:57,059 INFO L87 Difference]: Start difference. First operand 16326 states and 35323 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:00,286 INFO L93 Difference]: Finished difference Result 69972 states and 148627 transitions. [2022-09-16 10:51:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:51:00,296 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:00,470 INFO L225 Difference]: With dead ends: 69972 [2022-09-16 10:51:00,470 INFO L226 Difference]: Without dead ends: 69972 [2022-09-16 10:51:00,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1376, Invalid=4324, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:51:00,471 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 3233 mSDsluCounter, 11682 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 12602 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:00,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 12602 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:51:00,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69972 states. [2022-09-16 10:51:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69972 to 16406. [2022-09-16 10:51:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16406 states, 16360 states have (on average 2.168887530562347) internal successors, (35483), 16405 states have internal predecessors, (35483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16406 states to 16406 states and 35483 transitions. [2022-09-16 10:51:01,405 INFO L78 Accepts]: Start accepts. Automaton has 16406 states and 35483 transitions. Word has length 81 [2022-09-16 10:51:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:01,405 INFO L495 AbstractCegarLoop]: Abstraction has 16406 states and 35483 transitions. [2022-09-16 10:51:01,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:01,405 INFO L276 IsEmpty]: Start isEmpty. Operand 16406 states and 35483 transitions. [2022-09-16 10:51:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:01,410 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:01,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:01,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-09-16 10:51:01,410 INFO L420 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:01,410 INFO L85 PathProgramCache]: Analyzing trace with hash -804227921, now seen corresponding path program 46 times [2022-09-16 10:51:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:01,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497774114] [2022-09-16 10:51:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:01,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:01,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:01,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497774114] [2022-09-16 10:51:01,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497774114] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:01,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:01,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:01,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396733122] [2022-09-16 10:51:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:01,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:01,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:01,650 INFO L87 Difference]: Start difference. First operand 16406 states and 35483 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:04,522 INFO L93 Difference]: Finished difference Result 69778 states and 148200 transitions. [2022-09-16 10:51:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-16 10:51:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:04,819 INFO L225 Difference]: With dead ends: 69778 [2022-09-16 10:51:04,819 INFO L226 Difference]: Without dead ends: 69778 [2022-09-16 10:51:04,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1155, Invalid=3675, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:51:04,819 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 3390 mSDsluCounter, 10702 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 11781 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:04,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 11781 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69778 states. [2022-09-16 10:51:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69778 to 16406. [2022-09-16 10:51:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16406 states, 16360 states have (on average 2.168887530562347) internal successors, (35483), 16405 states have internal predecessors, (35483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16406 states to 16406 states and 35483 transitions. [2022-09-16 10:51:05,365 INFO L78 Accepts]: Start accepts. Automaton has 16406 states and 35483 transitions. Word has length 81 [2022-09-16 10:51:05,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:05,365 INFO L495 AbstractCegarLoop]: Abstraction has 16406 states and 35483 transitions. [2022-09-16 10:51:05,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:05,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16406 states and 35483 transitions. [2022-09-16 10:51:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:05,370 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:05,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:05,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-09-16 10:51:05,371 INFO L420 AbstractCegarLoop]: === Iteration 251 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:05,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:05,371 INFO L85 PathProgramCache]: Analyzing trace with hash -478331800, now seen corresponding path program 12 times [2022-09-16 10:51:05,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:05,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833175868] [2022-09-16 10:51:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:05,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:05,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833175868] [2022-09-16 10:51:05,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833175868] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:05,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:05,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:51:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439410387] [2022-09-16 10:51:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:05,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:51:05,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:51:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:51:05,916 INFO L87 Difference]: Start difference. First operand 16406 states and 35483 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:12,175 INFO L93 Difference]: Finished difference Result 21291 states and 45444 transitions. [2022-09-16 10:51:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-16 10:51:12,175 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:12,210 INFO L225 Difference]: With dead ends: 21291 [2022-09-16 10:51:12,210 INFO L226 Difference]: Without dead ends: 21291 [2022-09-16 10:51:12,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2018, Invalid=5992, Unknown=0, NotChecked=0, Total=8010 [2022-09-16 10:51:12,211 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 2137 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 6579 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:12,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 6579 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:51:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21291 states. [2022-09-16 10:51:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21291 to 16397. [2022-09-16 10:51:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 16351 states have (on average 2.1689804904898784) internal successors, (35465), 16396 states have internal predecessors, (35465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 35465 transitions. [2022-09-16 10:51:12,478 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 35465 transitions. Word has length 81 [2022-09-16 10:51:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:12,478 INFO L495 AbstractCegarLoop]: Abstraction has 16397 states and 35465 transitions. [2022-09-16 10:51:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 35465 transitions. [2022-09-16 10:51:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:12,527 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:12,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:12,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-09-16 10:51:12,527 INFO L420 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2119677981, now seen corresponding path program 47 times [2022-09-16 10:51:12,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:12,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834928278] [2022-09-16 10:51:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:12,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:12,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834928278] [2022-09-16 10:51:12,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834928278] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:12,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:12,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:12,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242752106] [2022-09-16 10:51:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:12,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:12,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:12,803 INFO L87 Difference]: Start difference. First operand 16397 states and 35465 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:16,204 INFO L93 Difference]: Finished difference Result 74555 states and 158250 transitions. [2022-09-16 10:51:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-09-16 10:51:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:16,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:16,367 INFO L225 Difference]: With dead ends: 74555 [2022-09-16 10:51:16,367 INFO L226 Difference]: Without dead ends: 74555 [2022-09-16 10:51:16,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1458 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1602, Invalid=5040, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:51:16,368 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 3475 mSDsluCounter, 10847 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3475 SdHoareTripleChecker+Valid, 11818 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:16,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3475 Valid, 11818 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2468 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:16,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74555 states. [2022-09-16 10:51:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74555 to 16381. [2022-09-16 10:51:16,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16381 states, 16335 states have (on average 2.169146005509642) internal successors, (35433), 16380 states have internal predecessors, (35433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16381 states to 16381 states and 35433 transitions. [2022-09-16 10:51:16,993 INFO L78 Accepts]: Start accepts. Automaton has 16381 states and 35433 transitions. Word has length 81 [2022-09-16 10:51:16,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:16,994 INFO L495 AbstractCegarLoop]: Abstraction has 16381 states and 35433 transitions. [2022-09-16 10:51:16,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand 16381 states and 35433 transitions. [2022-09-16 10:51:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:16,998 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:16,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:16,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-09-16 10:51:16,999 INFO L420 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash 189189727, now seen corresponding path program 48 times [2022-09-16 10:51:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105893410] [2022-09-16 10:51:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:17,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105893410] [2022-09-16 10:51:17,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105893410] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:17,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:17,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:17,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118250821] [2022-09-16 10:51:17,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:17,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:17,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:17,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:17,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:17,263 INFO L87 Difference]: Start difference. First operand 16381 states and 35433 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:19,878 INFO L93 Difference]: Finished difference Result 61412 states and 130157 transitions. [2022-09-16 10:51:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:51:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:20,041 INFO L225 Difference]: With dead ends: 61412 [2022-09-16 10:51:20,041 INFO L226 Difference]: Without dead ends: 61412 [2022-09-16 10:51:20,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1223, Invalid=3889, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:51:20,042 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 3171 mSDsluCounter, 10578 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 11508 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:20,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 11508 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61412 states. [2022-09-16 10:51:20,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61412 to 15881. [2022-09-16 10:51:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15881 states, 15835 states have (on average 2.168171771392485) internal successors, (34333), 15880 states have internal predecessors, (34333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15881 states to 15881 states and 34333 transitions. [2022-09-16 10:51:20,796 INFO L78 Accepts]: Start accepts. Automaton has 15881 states and 34333 transitions. Word has length 81 [2022-09-16 10:51:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:20,797 INFO L495 AbstractCegarLoop]: Abstraction has 15881 states and 34333 transitions. [2022-09-16 10:51:20,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 15881 states and 34333 transitions. [2022-09-16 10:51:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:20,802 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:20,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:20,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-09-16 10:51:20,802 INFO L420 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:20,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1567332565, now seen corresponding path program 49 times [2022-09-16 10:51:20,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:20,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031783039] [2022-09-16 10:51:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:20,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:21,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031783039] [2022-09-16 10:51:21,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031783039] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:21,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:21,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729659001] [2022-09-16 10:51:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:21,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:21,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:21,064 INFO L87 Difference]: Start difference. First operand 15881 states and 34333 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:23,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:23,977 INFO L93 Difference]: Finished difference Result 71330 states and 151626 transitions. [2022-09-16 10:51:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:51:23,977 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:24,149 INFO L225 Difference]: With dead ends: 71330 [2022-09-16 10:51:24,150 INFO L226 Difference]: Without dead ends: 71330 [2022-09-16 10:51:24,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1225, Invalid=3745, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:51:24,150 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 3159 mSDsluCounter, 11069 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 12014 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:24,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 12014 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:51:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71330 states. [2022-09-16 10:51:24,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71330 to 15954. [2022-09-16 10:51:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15954 states, 15908 states have (on average 2.167400050289163) internal successors, (34479), 15953 states have internal predecessors, (34479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15954 states to 15954 states and 34479 transitions. [2022-09-16 10:51:24,758 INFO L78 Accepts]: Start accepts. Automaton has 15954 states and 34479 transitions. Word has length 81 [2022-09-16 10:51:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:24,758 INFO L495 AbstractCegarLoop]: Abstraction has 15954 states and 34479 transitions. [2022-09-16 10:51:24,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15954 states and 34479 transitions. [2022-09-16 10:51:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:24,763 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:24,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:24,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-09-16 10:51:24,765 INFO L420 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1114561933, now seen corresponding path program 50 times [2022-09-16 10:51:24,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:24,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250751756] [2022-09-16 10:51:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:24,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:24,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:24,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250751756] [2022-09-16 10:51:24,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250751756] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:24,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:24,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:24,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108625029] [2022-09-16 10:51:24,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:24,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:24,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:24,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:24,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:24,961 INFO L87 Difference]: Start difference. First operand 15954 states and 34479 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:27,089 INFO L93 Difference]: Finished difference Result 71100 states and 151127 transitions. [2022-09-16 10:51:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:51:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:27,275 INFO L225 Difference]: With dead ends: 71100 [2022-09-16 10:51:27,276 INFO L226 Difference]: Without dead ends: 71100 [2022-09-16 10:51:27,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1004, Invalid=3156, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:51:27,276 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 2976 mSDsluCounter, 10775 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 11879 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:27,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 11879 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:51:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71100 states. [2022-09-16 10:51:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71100 to 15954. [2022-09-16 10:51:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15954 states, 15908 states have (on average 2.167400050289163) internal successors, (34479), 15953 states have internal predecessors, (34479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15954 states to 15954 states and 34479 transitions. [2022-09-16 10:51:28,243 INFO L78 Accepts]: Start accepts. Automaton has 15954 states and 34479 transitions. Word has length 81 [2022-09-16 10:51:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:28,243 INFO L495 AbstractCegarLoop]: Abstraction has 15954 states and 34479 transitions. [2022-09-16 10:51:28,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 15954 states and 34479 transitions. [2022-09-16 10:51:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:28,248 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:28,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:28,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-09-16 10:51:28,249 INFO L420 AbstractCegarLoop]: === Iteration 256 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -788665812, now seen corresponding path program 13 times [2022-09-16 10:51:28,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:28,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013122316] [2022-09-16 10:51:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:28,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013122316] [2022-09-16 10:51:28,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013122316] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:28,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:28,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:51:28,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469759508] [2022-09-16 10:51:28,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:28,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:51:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:51:28,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:51:28,510 INFO L87 Difference]: Start difference. First operand 15954 states and 34479 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:32,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:32,842 INFO L93 Difference]: Finished difference Result 20956 states and 44674 transitions. [2022-09-16 10:51:32,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-09-16 10:51:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:32,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:32,881 INFO L225 Difference]: With dead ends: 20956 [2022-09-16 10:51:32,881 INFO L226 Difference]: Without dead ends: 20956 [2022-09-16 10:51:32,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1974, Invalid=5858, Unknown=0, NotChecked=0, Total=7832 [2022-09-16 10:51:32,882 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 2505 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 5833 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:32,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 5833 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:51:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20956 states. [2022-09-16 10:51:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20956 to 15945. [2022-09-16 10:51:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15945 states, 15899 states have (on average 2.1674948109944023) internal successors, (34461), 15944 states have internal predecessors, (34461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15945 states to 15945 states and 34461 transitions. [2022-09-16 10:51:33,166 INFO L78 Accepts]: Start accepts. Automaton has 15945 states and 34461 transitions. Word has length 81 [2022-09-16 10:51:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:33,166 INFO L495 AbstractCegarLoop]: Abstraction has 15945 states and 34461 transitions. [2022-09-16 10:51:33,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 15945 states and 34461 transitions. [2022-09-16 10:51:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:33,172 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:33,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:33,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-09-16 10:51:33,172 INFO L420 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1546456733, now seen corresponding path program 51 times [2022-09-16 10:51:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:33,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521890343] [2022-09-16 10:51:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:33,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:33,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:33,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521890343] [2022-09-16 10:51:33,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521890343] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:33,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:33,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:33,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468548033] [2022-09-16 10:51:33,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:33,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:33,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:33,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:33,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:33,444 INFO L87 Difference]: Start difference. First operand 15945 states and 34461 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:36,913 INFO L93 Difference]: Finished difference Result 76540 states and 162832 transitions. [2022-09-16 10:51:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:51:36,913 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:37,093 INFO L225 Difference]: With dead ends: 76540 [2022-09-16 10:51:37,093 INFO L226 Difference]: Without dead ends: 76540 [2022-09-16 10:51:37,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1150 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1410, Invalid=4290, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:51:37,094 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 2949 mSDsluCounter, 12118 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 13116 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:37,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 13116 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:51:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76540 states. [2022-09-16 10:51:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76540 to 15929. [2022-09-16 10:51:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15929 states, 15883 states have (on average 2.1676635396335704) internal successors, (34429), 15928 states have internal predecessors, (34429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15929 states to 15929 states and 34429 transitions. [2022-09-16 10:51:37,864 INFO L78 Accepts]: Start accepts. Automaton has 15929 states and 34429 transitions. Word has length 81 [2022-09-16 10:51:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:37,864 INFO L495 AbstractCegarLoop]: Abstraction has 15929 states and 34429 transitions. [2022-09-16 10:51:37,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 15929 states and 34429 transitions. [2022-09-16 10:51:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:37,869 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:37,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:37,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-09-16 10:51:37,869 INFO L420 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:37,870 INFO L85 PathProgramCache]: Analyzing trace with hash -332419105, now seen corresponding path program 52 times [2022-09-16 10:51:37,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:37,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025789460] [2022-09-16 10:51:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:37,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:38,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:38,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025789460] [2022-09-16 10:51:38,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025789460] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:38,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:38,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113485252] [2022-09-16 10:51:38,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:38,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:38,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:38,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:38,139 INFO L87 Difference]: Start difference. First operand 15929 states and 34429 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:41,234 INFO L93 Difference]: Finished difference Result 75614 states and 160890 transitions. [2022-09-16 10:51:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:51:41,239 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:41,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:41,407 INFO L225 Difference]: With dead ends: 75614 [2022-09-16 10:51:41,407 INFO L226 Difference]: Without dead ends: 75614 [2022-09-16 10:51:41,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1232, Invalid=3880, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:51:41,408 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 2888 mSDsluCounter, 12038 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 13019 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:41,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 13019 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75614 states. [2022-09-16 10:51:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75614 to 15874. [2022-09-16 10:51:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15874 states, 15828 states have (on average 2.1682461460702553) internal successors, (34319), 15873 states have internal predecessors, (34319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:42,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15874 states to 15874 states and 34319 transitions. [2022-09-16 10:51:42,043 INFO L78 Accepts]: Start accepts. Automaton has 15874 states and 34319 transitions. Word has length 81 [2022-09-16 10:51:42,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:42,043 INFO L495 AbstractCegarLoop]: Abstraction has 15874 states and 34319 transitions. [2022-09-16 10:51:42,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 15874 states and 34319 transitions. [2022-09-16 10:51:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:42,048 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:42,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:42,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-09-16 10:51:42,048 INFO L420 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2010978957, now seen corresponding path program 53 times [2022-09-16 10:51:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867542263] [2022-09-16 10:51:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:42,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:42,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:42,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867542263] [2022-09-16 10:51:42,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867542263] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:42,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:42,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:42,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719545407] [2022-09-16 10:51:42,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:42,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:42,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:42,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:42,282 INFO L87 Difference]: Start difference. First operand 15874 states and 34319 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:45,168 INFO L93 Difference]: Finished difference Result 63267 states and 134130 transitions. [2022-09-16 10:51:45,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:51:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:45,307 INFO L225 Difference]: With dead ends: 63267 [2022-09-16 10:51:45,307 INFO L226 Difference]: Without dead ends: 63267 [2022-09-16 10:51:45,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1074, Invalid=3482, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:51:45,308 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 2873 mSDsluCounter, 11600 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 12571 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:45,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 12571 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:45,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63267 states. [2022-09-16 10:51:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63267 to 15720. [2022-09-16 10:51:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15720 states, 15674 states have (on average 2.167857598570882) internal successors, (33979), 15719 states have internal predecessors, (33979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 33979 transitions. [2022-09-16 10:51:46,054 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 33979 transitions. Word has length 81 [2022-09-16 10:51:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:46,055 INFO L495 AbstractCegarLoop]: Abstraction has 15720 states and 33979 transitions. [2022-09-16 10:51:46,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:46,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 33979 transitions. [2022-09-16 10:51:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:46,059 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:46,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:46,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-09-16 10:51:46,059 INFO L420 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:46,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:46,059 INFO L85 PathProgramCache]: Analyzing trace with hash 94249567, now seen corresponding path program 54 times [2022-09-16 10:51:46,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:46,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803268438] [2022-09-16 10:51:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:46,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:46,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:46,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:46,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803268438] [2022-09-16 10:51:46,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803268438] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:46,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:46,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873280893] [2022-09-16 10:51:46,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:46,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:46,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:46,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:46,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:46,363 INFO L87 Difference]: Start difference. First operand 15720 states and 33979 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:49,143 INFO L93 Difference]: Finished difference Result 67374 states and 142692 transitions. [2022-09-16 10:51:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:51:49,143 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:49,292 INFO L225 Difference]: With dead ends: 67374 [2022-09-16 10:51:49,292 INFO L226 Difference]: Without dead ends: 67374 [2022-09-16 10:51:49,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1142, Invalid=3828, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:51:49,293 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 2979 mSDsluCounter, 11433 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 12405 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:49,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 12405 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67374 states. [2022-09-16 10:51:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67374 to 15744. [2022-09-16 10:51:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15744 states, 15698 states have (on average 2.1677283730411516) internal successors, (34029), 15743 states have internal predecessors, (34029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:49,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15744 states to 15744 states and 34029 transitions. [2022-09-16 10:51:49,894 INFO L78 Accepts]: Start accepts. Automaton has 15744 states and 34029 transitions. Word has length 81 [2022-09-16 10:51:49,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:49,894 INFO L495 AbstractCegarLoop]: Abstraction has 15744 states and 34029 transitions. [2022-09-16 10:51:49,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:49,894 INFO L276 IsEmpty]: Start isEmpty. Operand 15744 states and 34029 transitions. [2022-09-16 10:51:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:49,899 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:49,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:49,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-09-16 10:51:49,899 INFO L420 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1932037945, now seen corresponding path program 55 times [2022-09-16 10:51:49,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:49,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828525214] [2022-09-16 10:51:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:50,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:50,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828525214] [2022-09-16 10:51:50,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828525214] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:50,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:50,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:50,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663704693] [2022-09-16 10:51:50,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:50,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:50,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:50,320 INFO L87 Difference]: Start difference. First operand 15744 states and 34029 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:53,579 INFO L93 Difference]: Finished difference Result 75122 states and 159422 transitions. [2022-09-16 10:51:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:51:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:53,749 INFO L225 Difference]: With dead ends: 75122 [2022-09-16 10:51:53,749 INFO L226 Difference]: Without dead ends: 75122 [2022-09-16 10:51:53,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1323, Invalid=4079, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:51:53,749 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 2830 mSDsluCounter, 11976 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 12971 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:53,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 12971 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:51:53,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75122 states. [2022-09-16 10:51:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75122 to 15799. [2022-09-16 10:51:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15799 states, 15753 states have (on average 2.1671427664571827) internal successors, (34139), 15798 states have internal predecessors, (34139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15799 states to 15799 states and 34139 transitions. [2022-09-16 10:51:54,370 INFO L78 Accepts]: Start accepts. Automaton has 15799 states and 34139 transitions. Word has length 81 [2022-09-16 10:51:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:54,370 INFO L495 AbstractCegarLoop]: Abstraction has 15799 states and 34139 transitions. [2022-09-16 10:51:54,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 15799 states and 34139 transitions. [2022-09-16 10:51:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:54,375 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:54,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:54,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-09-16 10:51:54,376 INFO L420 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1910158719, now seen corresponding path program 56 times [2022-09-16 10:51:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:54,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93837619] [2022-09-16 10:51:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:54,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:54,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93837619] [2022-09-16 10:51:54,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93837619] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:54,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:54,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:51:54,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794001749] [2022-09-16 10:51:54,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:54,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:51:54,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:54,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:51:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:51:54,680 INFO L87 Difference]: Start difference. First operand 15799 states and 34139 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:51:57,760 INFO L93 Difference]: Finished difference Result 74886 states and 158911 transitions. [2022-09-16 10:51:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:51:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:51:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:51:57,930 INFO L225 Difference]: With dead ends: 74886 [2022-09-16 10:51:57,930 INFO L226 Difference]: Without dead ends: 74886 [2022-09-16 10:51:57,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1092, Invalid=3464, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:51:57,931 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 2863 mSDsluCounter, 12763 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 13869 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:51:57,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2863 Valid, 13869 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:51:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74886 states. [2022-09-16 10:51:58,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74886 to 15779. [2022-09-16 10:51:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15779 states, 15733 states have (on average 2.1669738765651814) internal successors, (34093), 15778 states have internal predecessors, (34093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:58,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15779 states to 15779 states and 34093 transitions. [2022-09-16 10:51:58,704 INFO L78 Accepts]: Start accepts. Automaton has 15779 states and 34093 transitions. Word has length 81 [2022-09-16 10:51:58,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:51:58,704 INFO L495 AbstractCegarLoop]: Abstraction has 15779 states and 34093 transitions. [2022-09-16 10:51:58,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:51:58,705 INFO L276 IsEmpty]: Start isEmpty. Operand 15779 states and 34093 transitions. [2022-09-16 10:51:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:51:58,709 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:51:58,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:51:58,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-09-16 10:51:58,709 INFO L420 AbstractCegarLoop]: === Iteration 263 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:51:58,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:51:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1584262598, now seen corresponding path program 14 times [2022-09-16 10:51:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:51:58,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370833095] [2022-09-16 10:51:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:51:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:59,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:59,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:59,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370833095] [2022-09-16 10:51:59,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370833095] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:59,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:59,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:51:59,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169813224] [2022-09-16 10:51:59,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:59,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:51:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:59,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:51:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:51:59,088 INFO L87 Difference]: Start difference. First operand 15779 states and 34093 transitions. Second operand has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:52:03,870 INFO L93 Difference]: Finished difference Result 20898 states and 44522 transitions. [2022-09-16 10:52:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-16 10:52:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:52:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:52:03,903 INFO L225 Difference]: With dead ends: 20898 [2022-09-16 10:52:03,903 INFO L226 Difference]: Without dead ends: 20898 [2022-09-16 10:52:03,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1542 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1928, Invalid=5728, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:52:03,904 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 2050 mSDsluCounter, 6376 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 6878 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:03,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 6878 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:52:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20898 states. [2022-09-16 10:52:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20898 to 15770. [2022-09-16 10:52:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15770 states, 15724 states have (on average 2.167069447977614) internal successors, (34075), 15769 states have internal predecessors, (34075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15770 states to 15770 states and 34075 transitions. [2022-09-16 10:52:04,145 INFO L78 Accepts]: Start accepts. Automaton has 15770 states and 34075 transitions. Word has length 81 [2022-09-16 10:52:04,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:52:04,146 INFO L495 AbstractCegarLoop]: Abstraction has 15770 states and 34075 transitions. [2022-09-16 10:52:04,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.24) internal successors, (81), 26 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:04,146 INFO L276 IsEmpty]: Start isEmpty. Operand 15770 states and 34075 transitions. [2022-09-16 10:52:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:52:04,150 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:52:04,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:52:04,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-09-16 10:52:04,150 INFO L420 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:52:04,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:52:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1952913777, now seen corresponding path program 57 times [2022-09-16 10:52:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:52:04,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751165302] [2022-09-16 10:52:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:52:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:52:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:52:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:52:04,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:52:04,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751165302] [2022-09-16 10:52:04,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751165302] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:52:04,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:52:04,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:52:04,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392900360] [2022-09-16 10:52:04,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:52:04,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:52:04,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:52:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:52:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:52:04,322 INFO L87 Difference]: Start difference. First operand 15770 states and 34075 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:52:07,188 INFO L93 Difference]: Finished difference Result 80507 states and 170988 transitions. [2022-09-16 10:52:07,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-16 10:52:07,189 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:52:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:52:07,381 INFO L225 Difference]: With dead ends: 80507 [2022-09-16 10:52:07,381 INFO L226 Difference]: Without dead ends: 80507 [2022-09-16 10:52:07,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1514, Invalid=4648, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:52:07,382 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 2997 mSDsluCounter, 13004 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 14040 SdHoareTripleChecker+Invalid, 2968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:07,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 14040 Invalid, 2968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:52:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80507 states. [2022-09-16 10:52:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80507 to 15754. [2022-09-16 10:52:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15754 states, 15708 states have (on average 2.167239623121976) internal successors, (34043), 15753 states have internal predecessors, (34043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15754 states to 15754 states and 34043 transitions. [2022-09-16 10:52:08,183 INFO L78 Accepts]: Start accepts. Automaton has 15754 states and 34043 transitions. Word has length 81 [2022-09-16 10:52:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:52:08,183 INFO L495 AbstractCegarLoop]: Abstraction has 15754 states and 34043 transitions. [2022-09-16 10:52:08,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 15754 states and 34043 transitions. [2022-09-16 10:52:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:52:08,188 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:52:08,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:52:08,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-09-16 10:52:08,188 INFO L420 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:52:08,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:52:08,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1128015891, now seen corresponding path program 58 times [2022-09-16 10:52:08,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:52:08,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101883631] [2022-09-16 10:52:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:52:08,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:52:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:52:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:52:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:52:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101883631] [2022-09-16 10:52:08,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101883631] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:52:08,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:52:08,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:52:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811378081] [2022-09-16 10:52:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:52:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:52:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:52:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:52:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:52:08,457 INFO L87 Difference]: Start difference. First operand 15754 states and 34043 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:52:12,323 INFO L93 Difference]: Finished difference Result 80115 states and 170292 transitions. [2022-09-16 10:52:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-09-16 10:52:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:52:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:52:12,557 INFO L225 Difference]: With dead ends: 80115 [2022-09-16 10:52:12,557 INFO L226 Difference]: Without dead ends: 80115 [2022-09-16 10:52:12,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1332, Invalid=4218, Unknown=0, NotChecked=0, Total=5550 [2022-09-16 10:52:12,558 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 2669 mSDsluCounter, 14089 mSDsCounter, 0 mSdLazyCounter, 3493 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2669 SdHoareTripleChecker+Valid, 15118 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:12,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2669 Valid, 15118 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3493 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-09-16 10:52:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80115 states. [2022-09-16 10:52:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80115 to 15714. [2022-09-16 10:52:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15714 states, 15668 states have (on average 2.1676665815675262) internal successors, (33963), 15713 states have internal predecessors, (33963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15714 states to 15714 states and 33963 transitions. [2022-09-16 10:52:13,374 INFO L78 Accepts]: Start accepts. Automaton has 15714 states and 33963 transitions. Word has length 81 [2022-09-16 10:52:13,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:52:13,374 INFO L495 AbstractCegarLoop]: Abstraction has 15714 states and 33963 transitions. [2022-09-16 10:52:13,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 15714 states and 33963 transitions. [2022-09-16 10:52:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:52:13,379 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:52:13,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:52:13,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-09-16 10:52:13,379 INFO L420 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:52:13,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:52:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1215382171, now seen corresponding path program 59 times [2022-09-16 10:52:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:52:13,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877416810] [2022-09-16 10:52:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:52:13,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:52:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:52:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:52:13,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:52:13,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877416810] [2022-09-16 10:52:13,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877416810] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:52:13,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:52:13,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:52:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335234951] [2022-09-16 10:52:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:52:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:52:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:52:13,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:52:13,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:52:13,647 INFO L87 Difference]: Start difference. First operand 15714 states and 33963 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:52:16,675 INFO L93 Difference]: Finished difference Result 80950 states and 171946 transitions. [2022-09-16 10:52:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:52:16,675 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:52:16,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:52:16,898 INFO L225 Difference]: With dead ends: 80950 [2022-09-16 10:52:16,899 INFO L226 Difference]: Without dead ends: 80950 [2022-09-16 10:52:16,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1168, Invalid=3802, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:52:16,899 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 2837 mSDsluCounter, 13279 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 14334 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:16,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 14334 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:52:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80950 states. [2022-09-16 10:52:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80950 to 15579. [2022-09-16 10:52:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15579 states, 15533 states have (on average 2.1675787034056526) internal successors, (33669), 15578 states have internal predecessors, (33669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15579 states to 15579 states and 33669 transitions. [2022-09-16 10:52:17,714 INFO L78 Accepts]: Start accepts. Automaton has 15579 states and 33669 transitions. Word has length 81 [2022-09-16 10:52:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:52:17,714 INFO L495 AbstractCegarLoop]: Abstraction has 15579 states and 33669 transitions. [2022-09-16 10:52:17,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:52:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15579 states and 33669 transitions. [2022-09-16 10:52:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:52:17,718 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:52:17,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:52:17,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-09-16 10:52:17,719 INFO L420 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:52:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:52:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash 815682619, now seen corresponding path program 60 times [2022-09-16 10:52:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:52:17,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927942846] [2022-09-16 10:52:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:52:17,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:52:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:52:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:52:17,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:52:17,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927942846] [2022-09-16 10:52:17,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927942846] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:52:17,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:52:17,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 10:52:17,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561088177] [2022-09-16 10:52:17,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:52:17,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:52:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:52:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:52:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:52:17,994 INFO L87 Difference]: Start difference. First operand 15579 states and 33669 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-09-16 10:52:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:52:19,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=731, Invalid=2575, Unknown=0, NotChecked=0, Total=3306 [2022-09-16 10:52:19,696 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1108 mSDsluCounter, 6363 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 6948 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:52:19,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 6948 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:52:19,697 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2022-09-16 10:52:19,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-09-16 10:52:19,698 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-09-16 10:52:19,700 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-09-16 10:52:19,701 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_nowait_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-09-16 10:52:19,704 INFO L444 BasicCegarLoop]: Path program histogram: [126, 60, 28, 28, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:52:19,708 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:52:19,708 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:52:19,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:52:19 BasicIcfg [2022-09-16 10:52:19,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:52:19,709 INFO L158 Benchmark]: Toolchain (without parser) took 834415.76ms. Allocated memory was 201.3MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 146.7MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 702.2MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,709 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:52:19,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.73ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 146.6MB in the beginning and 254.8MB in the end (delta: -108.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.74ms. Allocated memory is still 293.6MB. Free memory was 254.8MB in the beginning and 252.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,717 INFO L158 Benchmark]: Boogie Preprocessor took 46.25ms. Allocated memory is still 293.6MB. Free memory was 252.1MB in the beginning and 250.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,717 INFO L158 Benchmark]: RCFGBuilder took 619.83ms. Allocated memory is still 293.6MB. Free memory was 250.6MB in the beginning and 233.3MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,717 INFO L158 Benchmark]: TraceAbstraction took 833170.92ms. Allocated memory was 293.6MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 232.8MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 697.5MB. Max. memory is 8.0GB. [2022-09-16 10:52:19,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 528.73ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 146.6MB in the beginning and 254.8MB in the end (delta: -108.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.74ms. Allocated memory is still 293.6MB. Free memory was 254.8MB in the beginning and 252.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.25ms. Allocated memory is still 293.6MB. Free memory was 252.1MB in the beginning and 250.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 619.83ms. Allocated memory is still 293.6MB. Free memory was 250.6MB in the beginning and 233.3MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 833170.92ms. Allocated memory was 293.6MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 232.8MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 697.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 816]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 816]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 855]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 855]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 857]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 857]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 867]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was constructing difference of abstraction (15579states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (7693 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 222 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 833.0s, OverallIterations: 267, TraceHistogramMax: 2, PathProgramHistogramMax: 126, EmptinessCheckTime: 0.9s, AutomataDifference: 681.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 543345 SdHoareTripleChecker+Valid, 179.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543345 mSDsluCounter, 1518324 SdHoareTripleChecker+Invalid, 151.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1370063 mSDsCounter, 12533 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 467705 IncrementalHoareTripleChecker+Invalid, 480238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12533 mSolverCounterUnsat, 148276 mSDtfsCounter, 467705 mSolverCounterSat, 3.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15766 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 15272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178318 ImplicationChecksByTransitivity, 479.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17628occurred in iteration=241, InterpolantAutomatonStates: 10797, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 78.5s AutomataMinimizationTime, 266 MinimizatonAttempts, 3745398 StatesRemovedByMinimization, 265 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 66.8s InterpolantComputationTime, 20044 NumberOfCodeBlocks, 20044 NumberOfCodeBlocksAsserted, 269 NumberOfCheckSat, 19854 ConstructedInterpolants, 0 QuantifiedInterpolants, 204613 SizeOfPredicates, 14 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 270 InterpolantComputations, 266 PerfectInterpolantSequences, 20/38 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown