/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:38:27,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:38:27,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:38:27,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:38:27,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:38:27,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:38:27,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:38:27,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:38:27,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:38:27,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:38:27,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:38:27,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:38:27,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:38:27,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:38:27,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:38:27,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:38:27,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:38:27,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:38:27,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:38:27,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:38:27,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:38:27,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:38:27,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:38:27,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:38:27,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:38:27,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:38:27,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:38:27,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:38:27,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:38:27,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:38:27,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:38:27,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:38:27,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:38:27,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:38:27,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:38:27,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:38:27,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:38:27,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:38:27,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:38:27,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:38:27,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:38:27,984 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 10:38:28,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:38:28,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:38:28,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:38:28,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:38:28,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:38:28,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:38:28,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:38:28,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:38:28,011 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:38:28,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:38:28,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:38:28,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:38:28,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:38:28,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:38:28,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:38:28,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:28,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:38:28,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:38:28,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:38:28,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:38:28,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:38:28,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:38:28,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:38:28,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:38:28,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:38:28,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:38:28,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:38:28,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:38:28,281 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:38:28,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-09-16 10:38:28,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed7fbd1/5f98bf8ff9bc4388add02f3da09deebb/FLAG96df601a3 [2022-09-16 10:38:28,872 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:38:28,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-09-16 10:38:28,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed7fbd1/5f98bf8ff9bc4388add02f3da09deebb/FLAG96df601a3 [2022-09-16 10:38:29,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ed7fbd1/5f98bf8ff9bc4388add02f3da09deebb [2022-09-16 10:38:29,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:38:29,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:38:29,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:29,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:38:29,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:38:29,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12829007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29, skipping insertion in model container [2022-09-16 10:38:29,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:38:29,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:38:29,381 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:38:29,588 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-2.i[39095,39108] [2022-09-16 10:38:29,590 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-2.i[39180,39193] [2022-09-16 10:38:29,590 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-2.i[39232,39245] [2022-09-16 10:38:29,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:29,607 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:38:29,621 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:38:29,651 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-2.i[39095,39108] [2022-09-16 10:38:29,652 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-2.i[39180,39193] [2022-09-16 10:38:29,653 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-2.i[39232,39245] [2022-09-16 10:38:29,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:29,701 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:38:29,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29 WrapperNode [2022-09-16 10:38:29,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:29,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:29,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:38:29,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:38:29,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,782 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2022-09-16 10:38:29,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:29,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:38:29,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:38:29,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:38:29,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:38:29,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:38:29,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:38:29,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:38:29,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (1/1) ... [2022-09-16 10:38:29,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:29,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:29,912 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 10:38:29,934 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 10:38:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-09-16 10:38:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-09-16 10:38:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:38:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:38:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:38:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:38:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:38:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:38:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:38:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:38:29,949 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 10:38:30,055 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:38:30,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:38:30,385 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:38:30,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:38:30,393 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:38:30,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:30 BoogieIcfgContainer [2022-09-16 10:38:30,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:38:30,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:38:30,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:38:30,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:38:30,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:38:29" (1/3) ... [2022-09-16 10:38:30,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fb3e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:30, skipping insertion in model container [2022-09-16 10:38:30,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:29" (2/3) ... [2022-09-16 10:38:30,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fb3e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:30, skipping insertion in model container [2022-09-16 10:38:30,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:30" (3/3) ... [2022-09-16 10:38:30,407 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-09-16 10:38:30,414 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:38:30,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:38:30,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-09-16 10:38:30,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:38:30,509 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 10:38:30,534 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 177 places, 183 transitions, 374 flow [2022-09-16 10:38:30,658 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4178 states, 4116 states have (on average 2.1362973760932946) internal successors, (8793), 4177 states have internal predecessors, (8793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:38:30,680 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;@3ccc88aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:38:30,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-09-16 10:38:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 4178 states, 4116 states have (on average 2.1362973760932946) internal successors, (8793), 4177 states have internal predecessors, (8793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:38:30,698 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:30,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:30,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:30,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash 327290907, now seen corresponding path program 1 times [2022-09-16 10:38:30,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:30,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744770826] [2022-09-16 10:38:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:30,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:30,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:30,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744770826] [2022-09-16 10:38:30,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744770826] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:30,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:30,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:30,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705701053] [2022-09-16 10:38:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:30,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:30,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:30,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:30,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:30,981 INFO L87 Difference]: Start difference. First operand has 4178 states, 4116 states have (on average 2.1362973760932946) internal successors, (8793), 4177 states have internal predecessors, (8793), 0 states have call successors, (0), 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 10:38:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:31,188 INFO L93 Difference]: Finished difference Result 6864 states and 13942 transitions. [2022-09-16 10:38:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:31,191 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 10:38:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:31,251 INFO L225 Difference]: With dead ends: 6864 [2022-09-16 10:38:31,251 INFO L226 Difference]: Without dead ends: 6858 [2022-09-16 10:38:31,252 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 10:38:31,259 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 113 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:31,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 389 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:38:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2022-09-16 10:38:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 6384. [2022-09-16 10:38:31,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6384 states, 6298 states have (on average 2.1105112734201334) internal successors, (13292), 6383 states have internal predecessors, (13292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6384 states to 6384 states and 13292 transitions. [2022-09-16 10:38:31,512 INFO L78 Accepts]: Start accepts. Automaton has 6384 states and 13292 transitions. Word has length 43 [2022-09-16 10:38:31,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:31,513 INFO L495 AbstractCegarLoop]: Abstraction has 6384 states and 13292 transitions. [2022-09-16 10:38:31,513 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 10:38:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6384 states and 13292 transitions. [2022-09-16 10:38:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:38:31,522 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:31,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:31,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:38:31,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -591645628, now seen corresponding path program 1 times [2022-09-16 10:38:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:31,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424316164] [2022-09-16 10:38:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:31,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:31,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424316164] [2022-09-16 10:38:31,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424316164] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:31,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:31,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-16 10:38:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001663008] [2022-09-16 10:38:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:31,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 10:38:31,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:31,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 10:38:31,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:38:31,978 INFO L87 Difference]: Start difference. First operand 6384 states and 13292 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 10:38:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:32,967 INFO L93 Difference]: Finished difference Result 8312 states and 17299 transitions. [2022-09-16 10:38:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:38:32,967 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 10:38:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:33,000 INFO L225 Difference]: With dead ends: 8312 [2022-09-16 10:38:33,000 INFO L226 Difference]: Without dead ends: 8312 [2022-09-16 10:38:33,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:38:33,001 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1200 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:33,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 3035 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8312 states. [2022-09-16 10:38:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 7804. [2022-09-16 10:38:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7804 states, 7718 states have (on average 2.0991189427312777) internal successors, (16201), 7803 states have internal predecessors, (16201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7804 states to 7804 states and 16201 transitions. [2022-09-16 10:38:33,188 INFO L78 Accepts]: Start accepts. Automaton has 7804 states and 16201 transitions. Word has length 51 [2022-09-16 10:38:33,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:33,188 INFO L495 AbstractCegarLoop]: Abstraction has 7804 states and 16201 transitions. [2022-09-16 10:38:33,189 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 10:38:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7804 states and 16201 transitions. [2022-09-16 10:38:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 10:38:33,192 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:33,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:33,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:38:33,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:33,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:33,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1454019110, now seen corresponding path program 1 times [2022-09-16 10:38:33,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:33,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834153937] [2022-09-16 10:38:33,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:33,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:33,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834153937] [2022-09-16 10:38:33,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834153937] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:33,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:33,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 10:38:33,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357315416] [2022-09-16 10:38:33,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:33,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:38:33,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:33,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:38:33,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:33,360 INFO L87 Difference]: Start difference. First operand 7804 states and 16201 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 10:38:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:33,921 INFO L93 Difference]: Finished difference Result 11658 states and 23804 transitions. [2022-09-16 10:38:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:38:33,922 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 10:38:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:33,963 INFO L225 Difference]: With dead ends: 11658 [2022-09-16 10:38:33,964 INFO L226 Difference]: Without dead ends: 11658 [2022-09-16 10:38:33,964 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 10:38:33,965 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1329 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:33,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 4914 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11658 states. [2022-09-16 10:38:34,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11658 to 9181. [2022-09-16 10:38:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 9095 states have (on average 2.1168774051676746) internal successors, (19253), 9180 states have internal predecessors, (19253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 19253 transitions. [2022-09-16 10:38:34,269 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 19253 transitions. Word has length 61 [2022-09-16 10:38:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:34,272 INFO L495 AbstractCegarLoop]: Abstraction has 9181 states and 19253 transitions. [2022-09-16 10:38:34,273 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 10:38:34,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 19253 transitions. [2022-09-16 10:38:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:38:34,276 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:34,276 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] [2022-09-16 10:38:34,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:38:34,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2124919143, now seen corresponding path program 1 times [2022-09-16 10:38:34,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:34,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896566506] [2022-09-16 10:38:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:34,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:34,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896566506] [2022-09-16 10:38:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896566506] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:34,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:34,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 10:38:34,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963552359] [2022-09-16 10:38:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:34,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:38:34,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:38:34,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:34,423 INFO L87 Difference]: Start difference. First operand 9181 states and 19253 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 10:38:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:34,971 INFO L93 Difference]: Finished difference Result 12895 states and 26517 transitions. [2022-09-16 10:38:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:38:34,971 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 10:38:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:35,005 INFO L225 Difference]: With dead ends: 12895 [2022-09-16 10:38:35,005 INFO L226 Difference]: Without dead ends: 12895 [2022-09-16 10:38:35,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:38:35,014 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 1343 mSDsluCounter, 3875 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 4479 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:35,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 4479 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12895 states. [2022-09-16 10:38:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12895 to 10388. [2022-09-16 10:38:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10388 states, 10302 states have (on average 2.133275092215104) internal successors, (21977), 10387 states have internal predecessors, (21977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10388 states to 10388 states and 21977 transitions. [2022-09-16 10:38:35,298 INFO L78 Accepts]: Start accepts. Automaton has 10388 states and 21977 transitions. Word has length 62 [2022-09-16 10:38:35,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:35,298 INFO L495 AbstractCegarLoop]: Abstraction has 10388 states and 21977 transitions. [2022-09-16 10:38:35,298 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 10:38:35,298 INFO L276 IsEmpty]: Start isEmpty. Operand 10388 states and 21977 transitions. [2022-09-16 10:38:35,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-09-16 10:38:35,302 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:35,302 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] [2022-09-16 10:38:35,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:38:35,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:35,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1273658638, now seen corresponding path program 1 times [2022-09-16 10:38:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:35,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312738400] [2022-09-16 10:38:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:35,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:35,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:35,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312738400] [2022-09-16 10:38:35,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312738400] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:35,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:35,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-09-16 10:38:35,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198079964] [2022-09-16 10:38:35,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:35,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:38:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:38:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:38:35,518 INFO L87 Difference]: Start difference. First operand 10388 states and 21977 transitions. Second operand has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:36,462 INFO L93 Difference]: Finished difference Result 11326 states and 23961 transitions. [2022-09-16 10:38:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 10:38:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-09-16 10:38:36,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:36,491 INFO L225 Difference]: With dead ends: 11326 [2022-09-16 10:38:36,492 INFO L226 Difference]: Without dead ends: 11326 [2022-09-16 10:38:36,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:38:36,493 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1563 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:36,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 2326 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2022-09-16 10:38:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 10541. [2022-09-16 10:38:36,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10541 states, 10455 states have (on average 2.1312290769966524) internal successors, (22282), 10540 states have internal predecessors, (22282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 22282 transitions. [2022-09-16 10:38:36,762 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 22282 transitions. Word has length 65 [2022-09-16 10:38:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:36,762 INFO L495 AbstractCegarLoop]: Abstraction has 10541 states and 22282 transitions. [2022-09-16 10:38:36,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 22282 transitions. [2022-09-16 10:38:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-09-16 10:38:36,765 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:36,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:36,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:38:36,766 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash 828712617, now seen corresponding path program 1 times [2022-09-16 10:38:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:36,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33353470] [2022-09-16 10:38:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:37,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:37,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33353470] [2022-09-16 10:38:37,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33353470] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:37,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:37,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-09-16 10:38:37,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235835059] [2022-09-16 10:38:37,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:37,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:38:37,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:38:37,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:38:37,019 INFO L87 Difference]: Start difference. First operand 10541 states and 22282 transitions. Second operand has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:38,040 INFO L93 Difference]: Finished difference Result 14785 states and 31059 transitions. [2022-09-16 10:38:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:38:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-09-16 10:38:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:38,111 INFO L225 Difference]: With dead ends: 14785 [2022-09-16 10:38:38,111 INFO L226 Difference]: Without dead ends: 14785 [2022-09-16 10:38:38,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=823, Unknown=0, NotChecked=0, Total=1122 [2022-09-16 10:38:38,112 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 2031 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:38,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 3006 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14785 states. [2022-09-16 10:38:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14785 to 10582. [2022-09-16 10:38:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10582 states, 10496 states have (on average 2.129858993902439) internal successors, (22355), 10581 states have internal predecessors, (22355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10582 states to 10582 states and 22355 transitions. [2022-09-16 10:38:38,311 INFO L78 Accepts]: Start accepts. Automaton has 10582 states and 22355 transitions. Word has length 66 [2022-09-16 10:38:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:38,312 INFO L495 AbstractCegarLoop]: Abstraction has 10582 states and 22355 transitions. [2022-09-16 10:38:38,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 10582 states and 22355 transitions. [2022-09-16 10:38:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-09-16 10:38:38,316 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:38,316 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 10:38:38,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:38:38,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:38,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2142545739, now seen corresponding path program 1 times [2022-09-16 10:38:38,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:38,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716585966] [2022-09-16 10:38:38,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:38,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:38,351 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 10:38:38,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:38,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716585966] [2022-09-16 10:38:38,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716585966] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:38,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:38,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:38,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756411985] [2022-09-16 10:38:38,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:38,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:38,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:38,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:38,353 INFO L87 Difference]: Start difference. First operand 10582 states and 22355 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 10:38:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:38,450 INFO L93 Difference]: Finished difference Result 10420 states and 22029 transitions. [2022-09-16 10:38:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:38,450 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 10:38:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:38,468 INFO L225 Difference]: With dead ends: 10420 [2022-09-16 10:38:38,468 INFO L226 Difference]: Without dead ends: 10420 [2022-09-16 10:38:38,468 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 10:38:38,469 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 115 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 356 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 10:38:38,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 356 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10420 states. [2022-09-16 10:38:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10420 to 10420. [2022-09-16 10:38:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10420 states, 10354 states have (on average 2.1275835425922347) internal successors, (22029), 10419 states have internal predecessors, (22029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:38,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10420 states to 10420 states and 22029 transitions. [2022-09-16 10:38:38,638 INFO L78 Accepts]: Start accepts. Automaton has 10420 states and 22029 transitions. Word has length 72 [2022-09-16 10:38:38,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:38,638 INFO L495 AbstractCegarLoop]: Abstraction has 10420 states and 22029 transitions. [2022-09-16 10:38:38,638 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 10:38:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand 10420 states and 22029 transitions. [2022-09-16 10:38:38,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:38:38,643 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:38,643 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 10:38:38,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:38:38,643 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:38,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1994408751, now seen corresponding path program 1 times [2022-09-16 10:38:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:38,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560993745] [2022-09-16 10:38:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:38,680 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 10:38:38,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:38,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560993745] [2022-09-16 10:38:38,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560993745] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:38,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391267981] [2022-09-16 10:38:38,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:38,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:38,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:38,682 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 10:38:38,719 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 10:38:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:38,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:38:38,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:38,989 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 10:38:38,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:38:38,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391267981] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:38,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:38:38,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 10:38:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603983808] [2022-09-16 10:38:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:38,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:38,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:38,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:38,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:38:38,991 INFO L87 Difference]: Start difference. First operand 10420 states and 22029 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 10:38:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:39,054 INFO L93 Difference]: Finished difference Result 10716 states and 22329 transitions. [2022-09-16 10:38:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:38:39,055 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 10:38:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:39,078 INFO L225 Difference]: With dead ends: 10716 [2022-09-16 10:38:39,078 INFO L226 Difference]: Without dead ends: 10716 [2022-09-16 10:38:39,079 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 10:38:39,079 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 216 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 559 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 10:38:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 559 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10716 states. [2022-09-16 10:38:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10716 to 9261. [2022-09-16 10:38:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9261 states, 9215 states have (on average 2.1213239283776453) internal successors, (19548), 9260 states have internal predecessors, (19548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9261 states to 9261 states and 19548 transitions. [2022-09-16 10:38:39,301 INFO L78 Accepts]: Start accepts. Automaton has 9261 states and 19548 transitions. Word has length 73 [2022-09-16 10:38:39,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:39,301 INFO L495 AbstractCegarLoop]: Abstraction has 9261 states and 19548 transitions. [2022-09-16 10:38:39,301 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 10:38:39,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9261 states and 19548 transitions. [2022-09-16 10:38:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-09-16 10:38:39,310 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:39,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:39,337 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 10:38:39,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:39,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:39,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:39,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1702021644, now seen corresponding path program 1 times [2022-09-16 10:38:39,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:39,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561183337] [2022-09-16 10:38:39,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:39,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:39,572 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 10:38:39,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:39,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561183337] [2022-09-16 10:38:39,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561183337] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:39,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:39,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:39,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297593091] [2022-09-16 10:38:39,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:39,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:39,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:39,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:39,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:39,576 INFO L87 Difference]: Start difference. First operand 9261 states and 19548 transitions. Second operand has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:39,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:39,636 INFO L93 Difference]: Finished difference Result 11712 states and 24595 transitions. [2022-09-16 10:38:39,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:39,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-09-16 10:38:39,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:39,659 INFO L225 Difference]: With dead ends: 11712 [2022-09-16 10:38:39,660 INFO L226 Difference]: Without dead ends: 11712 [2022-09-16 10:38:39,660 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 10:38:39,662 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 61 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 359 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 10:38:39,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11712 states. [2022-09-16 10:38:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11712 to 11286. [2022-09-16 10:38:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11286 states, 11240 states have (on average 2.1226868327402135) internal successors, (23859), 11285 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11286 states to 11286 states and 23859 transitions. [2022-09-16 10:38:39,881 INFO L78 Accepts]: Start accepts. Automaton has 11286 states and 23859 transitions. Word has length 75 [2022-09-16 10:38:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:39,881 INFO L495 AbstractCegarLoop]: Abstraction has 11286 states and 23859 transitions. [2022-09-16 10:38:39,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 11286 states and 23859 transitions. [2022-09-16 10:38:39,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:38:39,885 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:39,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:39,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:38:39,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:39,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2058679112, now seen corresponding path program 1 times [2022-09-16 10:38:39,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:39,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422590081] [2022-09-16 10:38:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:39,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:39,948 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 10:38:39,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:39,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422590081] [2022-09-16 10:38:39,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422590081] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:39,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:39,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:39,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257079354] [2022-09-16 10:38:39,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:39,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:39,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:39,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:39,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:39,951 INFO L87 Difference]: Start difference. First operand 11286 states and 23859 transitions. Second operand has 3 states, 2 states have (on average 39.5) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:40,003 INFO L93 Difference]: Finished difference Result 11970 states and 25128 transitions. [2022-09-16 10:38:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 39.5) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-09-16 10:38:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:40,028 INFO L225 Difference]: With dead ends: 11970 [2022-09-16 10:38:40,028 INFO L226 Difference]: Without dead ends: 11970 [2022-09-16 10:38:40,029 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 10:38:40,030 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 59 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 361 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 10:38:40,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 361 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11970 states. [2022-09-16 10:38:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11970 to 11594. [2022-09-16 10:38:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11594 states, 11548 states have (on average 2.1246969172151022) internal successors, (24536), 11593 states have internal predecessors, (24536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11594 states to 11594 states and 24536 transitions. [2022-09-16 10:38:40,241 INFO L78 Accepts]: Start accepts. Automaton has 11594 states and 24536 transitions. Word has length 79 [2022-09-16 10:38:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:40,242 INFO L495 AbstractCegarLoop]: Abstraction has 11594 states and 24536 transitions. [2022-09-16 10:38:40,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 39.5) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 11594 states and 24536 transitions. [2022-09-16 10:38:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-09-16 10:38:40,246 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:40,246 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 10:38:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:38:40,247 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 557620084, now seen corresponding path program 1 times [2022-09-16 10:38:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:40,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267464441] [2022-09-16 10:38:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:40,461 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 10:38:40,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:40,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267464441] [2022-09-16 10:38:40,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267464441] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:40,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867779985] [2022-09-16 10:38:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:40,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:40,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:40,467 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 10:38:40,468 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 10:38:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:40,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 21 conjunts are in the unsatisfiable core [2022-09-16 10:38:40,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:40,707 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 10:38:40,810 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 10:38:40,814 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 10:38:40,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:40,923 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 10:38:41,008 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 10:38:41,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867779985] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:41,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:41,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 22 [2022-09-16 10:38:41,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31670169] [2022-09-16 10:38:41,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:41,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:38:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:41,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:38:41,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:38:41,010 INFO L87 Difference]: Start difference. First operand 11594 states and 24536 transitions. Second operand has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:41,760 INFO L93 Difference]: Finished difference Result 11991 states and 25163 transitions. [2022-09-16 10:38:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:38:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have 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 10:38:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:41,782 INFO L225 Difference]: With dead ends: 11991 [2022-09-16 10:38:41,782 INFO L226 Difference]: Without dead ends: 11991 [2022-09-16 10:38:41,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-09-16 10:38:41,783 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 2300 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 6393 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:41,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 6393 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:38:41,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11991 states. [2022-09-16 10:38:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11991 to 11556. [2022-09-16 10:38:41,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11556 states, 11510 states have (on average 2.117289313640313) internal successors, (24370), 11555 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11556 states to 11556 states and 24370 transitions. [2022-09-16 10:38:41,977 INFO L78 Accepts]: Start accepts. Automaton has 11556 states and 24370 transitions. Word has length 80 [2022-09-16 10:38:41,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:41,978 INFO L495 AbstractCegarLoop]: Abstraction has 11556 states and 24370 transitions. [2022-09-16 10:38:41,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.136363636363637) internal successors, (157), 23 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 11556 states and 24370 transitions. [2022-09-16 10:38:41,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:38:41,982 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:41,982 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-09-16 10:38:42,010 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 10:38:42,198 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,SelfDestructingSolverStorable10 [2022-09-16 10:38:42,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:42,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash 106353707, now seen corresponding path program 1 times [2022-09-16 10:38:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:42,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769063560] [2022-09-16 10:38:42,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:42,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769063560] [2022-09-16 10:38:42,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769063560] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007266288] [2022-09-16 10:38:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:42,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:42,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:42,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:38:42,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:38:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:42,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 21 conjunts are in the unsatisfiable core [2022-09-16 10:38:42,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:42,772 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 10:38:42,872 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 21 treesize of output 9 [2022-09-16 10:38:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:42,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:43,005 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 34 treesize of output 28 [2022-09-16 10:38:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:43,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007266288] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:43,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:43,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 7, 7] total 30 [2022-09-16 10:38:43,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777505375] [2022-09-16 10:38:43,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:43,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-09-16 10:38:43,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:43,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-09-16 10:38:43,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2022-09-16 10:38:43,081 INFO L87 Difference]: Start difference. First operand 11556 states and 24370 transitions. Second operand has 31 states, 30 states have (on average 5.4) internal successors, (162), 31 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:45,338 INFO L93 Difference]: Finished difference Result 21475 states and 45259 transitions. [2022-09-16 10:38:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-09-16 10:38:45,339 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 5.4) internal successors, (162), 31 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have 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 10:38:45,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:45,367 INFO L225 Difference]: With dead ends: 21475 [2022-09-16 10:38:45,367 INFO L226 Difference]: Without dead ends: 21475 [2022-09-16 10:38:45,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=694, Invalid=2498, Unknown=0, NotChecked=0, Total=3192 [2022-09-16 10:38:45,368 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 4663 mSDsluCounter, 7992 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4663 SdHoareTripleChecker+Valid, 8653 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4663 Valid, 8653 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:38:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21475 states. [2022-09-16 10:38:45,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21475 to 13722. [2022-09-16 10:38:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13722 states, 13676 states have (on average 2.1385639075753144) internal successors, (29247), 13721 states have internal predecessors, (29247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13722 states to 13722 states and 29247 transitions. [2022-09-16 10:38:45,633 INFO L78 Accepts]: Start accepts. Automaton has 13722 states and 29247 transitions. Word has length 81 [2022-09-16 10:38:45,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:45,634 INFO L495 AbstractCegarLoop]: Abstraction has 13722 states and 29247 transitions. [2022-09-16 10:38:45,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 5.4) internal successors, (162), 31 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13722 states and 29247 transitions. [2022-09-16 10:38:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-09-16 10:38:45,638 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:45,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:45,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:45,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:45,858 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:45,858 INFO L85 PathProgramCache]: Analyzing trace with hash 689283310, now seen corresponding path program 1 times [2022-09-16 10:38:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:45,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017955885] [2022-09-16 10:38:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:46,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017955885] [2022-09-16 10:38:46,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017955885] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:46,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:46,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 10:38:46,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261726244] [2022-09-16 10:38:46,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:46,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:38:46,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:46,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:38:46,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:38:46,149 INFO L87 Difference]: Start difference. First operand 13722 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:47,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:47,751 INFO L93 Difference]: Finished difference Result 6474 states and 13285 transitions. [2022-09-16 10:38:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 10:38:47,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-09-16 10:38:47,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:47,757 INFO L225 Difference]: With dead ends: 6474 [2022-09-16 10:38:47,757 INFO L226 Difference]: Without dead ends: 6474 [2022-09-16 10:38:47,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=361, Invalid=971, Unknown=0, NotChecked=0, Total=1332 [2022-09-16 10:38:47,758 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1155 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:47,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 3746 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:38:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2022-09-16 10:38:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6041. [2022-09-16 10:38:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6041 states, 6015 states have (on average 2.063009143807149) internal successors, (12409), 6040 states have internal predecessors, (12409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 12409 transitions. [2022-09-16 10:38:47,850 INFO L78 Accepts]: Start accepts. Automaton has 6041 states and 12409 transitions. Word has length 86 [2022-09-16 10:38:47,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:47,850 INFO L495 AbstractCegarLoop]: Abstraction has 6041 states and 12409 transitions. [2022-09-16 10:38:47,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:38:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6041 states and 12409 transitions. [2022-09-16 10:38:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-09-16 10:38:47,853 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:47,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:38:47,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:38:47,854 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:38:47,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1017288970, now seen corresponding path program 1 times [2022-09-16 10:38:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:47,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508765653] [2022-09-16 10:38:47,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:47,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508765653] [2022-09-16 10:38:47,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508765653] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:47,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530203820] [2022-09-16 10:38:47,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:47,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:47,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:47,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:38:48,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:38:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:48,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 24 conjunts are in the unsatisfiable core [2022-09-16 10:38:48,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:48,176 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 10:38:48,300 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 10:38:48,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 28 [2022-09-16 10:38:48,309 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 10:38:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:48,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:39:11,106 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 10:39:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 6 refuted. 9 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:11,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530203820] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:39:11,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:39:11,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 20 [2022-09-16 10:39:11,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131765681] [2022-09-16 10:39:11,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:39:11,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:39:11,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:11,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:39:11,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=350, Unknown=9, NotChecked=0, Total=420 [2022-09-16 10:39:11,171 INFO L87 Difference]: Start difference. First operand 6041 states and 12409 transitions. Second operand has 21 states, 20 states have (on average 7.55) internal successors, (151), 21 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:20,420 INFO L93 Difference]: Finished difference Result 13406 states and 27624 transitions. [2022-09-16 10:39:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:39:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.55) internal successors, (151), 21 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-09-16 10:39:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:20,445 INFO L225 Difference]: With dead ends: 13406 [2022-09-16 10:39:20,445 INFO L226 Difference]: Without dead ends: 13406 [2022-09-16 10:39:20,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 171 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=406, Invalid=1387, Unknown=13, NotChecked=0, Total=1806 [2022-09-16 10:39:20,446 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 5746 mSDsluCounter, 5317 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5746 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:20,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5746 Valid, 5925 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 909 Invalid, 0 Unknown, 158 Unchecked, 0.6s Time] [2022-09-16 10:39:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13406 states. [2022-09-16 10:39:20,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13406 to 6884. [2022-09-16 10:39:20,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 6868 states have (on average 2.0607163657542227) internal successors, (14153), 6883 states have internal predecessors, (14153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 14153 transitions. [2022-09-16 10:39:20,588 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 14153 transitions. Word has length 90 [2022-09-16 10:39:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:20,588 INFO L495 AbstractCegarLoop]: Abstraction has 6884 states and 14153 transitions. [2022-09-16 10:39:20,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.55) internal successors, (151), 21 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 14153 transitions. [2022-09-16 10:39:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:20,591 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:20,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:20,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:39:20,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:39:20,807 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:20,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:20,808 INFO L85 PathProgramCache]: Analyzing trace with hash 618891401, now seen corresponding path program 1 times [2022-09-16 10:39:20,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:20,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651853547] [2022-09-16 10:39:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:20,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:21,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:21,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651853547] [2022-09-16 10:39:21,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651853547] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:21,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:21,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634762015] [2022-09-16 10:39:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:21,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:21,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:21,176 INFO L87 Difference]: Start difference. First operand 6884 states and 14153 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:23,202 INFO L93 Difference]: Finished difference Result 11446 states and 23496 transitions. [2022-09-16 10:39:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-16 10:39:23,202 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:23,215 INFO L225 Difference]: With dead ends: 11446 [2022-09-16 10:39:23,216 INFO L226 Difference]: Without dead ends: 11446 [2022-09-16 10:39:23,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=585, Invalid=2277, Unknown=0, NotChecked=0, Total=2862 [2022-09-16 10:39:23,217 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1684 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 5013 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:23,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 5013 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:39:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11446 states. [2022-09-16 10:39:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11446 to 7735. [2022-09-16 10:39:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7735 states, 7719 states have (on average 2.0580386060370515) internal successors, (15886), 7734 states have internal predecessors, (15886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 15886 transitions. [2022-09-16 10:39:23,316 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 15886 transitions. Word has length 91 [2022-09-16 10:39:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:23,317 INFO L495 AbstractCegarLoop]: Abstraction has 7735 states and 15886 transitions. [2022-09-16 10:39:23,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 15886 transitions. [2022-09-16 10:39:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:23,321 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:23,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:23,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 10:39:23,322 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:23,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 301160923, now seen corresponding path program 2 times [2022-09-16 10:39:23,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:23,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313834262] [2022-09-16 10:39:23,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:23,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313834262] [2022-09-16 10:39:23,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313834262] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:23,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:23,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614784623] [2022-09-16 10:39:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:23,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:23,696 INFO L87 Difference]: Start difference. First operand 7735 states and 15886 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:25,999 INFO L93 Difference]: Finished difference Result 12066 states and 24767 transitions. [2022-09-16 10:39:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-09-16 10:39:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:26,018 INFO L225 Difference]: With dead ends: 12066 [2022-09-16 10:39:26,018 INFO L226 Difference]: Without dead ends: 12066 [2022-09-16 10:39:26,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=663, Invalid=2529, Unknown=0, NotChecked=0, Total=3192 [2022-09-16 10:39:26,020 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1520 mSDsluCounter, 5069 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:26,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 5481 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:39:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12066 states. [2022-09-16 10:39:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12066 to 7742. [2022-09-16 10:39:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 7726 states have (on average 2.0579860212270256) internal successors, (15900), 7741 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 15900 transitions. [2022-09-16 10:39:26,147 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 15900 transitions. Word has length 91 [2022-09-16 10:39:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:26,147 INFO L495 AbstractCegarLoop]: Abstraction has 7742 states and 15900 transitions. [2022-09-16 10:39:26,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 15900 transitions. [2022-09-16 10:39:26,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:26,151 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:26,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:26,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:39:26,151 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2119262319, now seen corresponding path program 3 times [2022-09-16 10:39:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:26,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766424389] [2022-09-16 10:39:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:26,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:26,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766424389] [2022-09-16 10:39:26,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766424389] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:26,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:26,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:26,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800924351] [2022-09-16 10:39:26,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:26,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:26,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:26,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:26,507 INFO L87 Difference]: Start difference. First operand 7742 states and 15900 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:28,960 INFO L93 Difference]: Finished difference Result 11618 states and 23840 transitions. [2022-09-16 10:39:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:39:28,961 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:28,975 INFO L225 Difference]: With dead ends: 11618 [2022-09-16 10:39:28,976 INFO L226 Difference]: Without dead ends: 11618 [2022-09-16 10:39:28,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=811, Invalid=2971, Unknown=0, NotChecked=0, Total=3782 [2022-09-16 10:39:28,977 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 1715 mSDsluCounter, 4401 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:28,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 4795 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:39:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11618 states. [2022-09-16 10:39:29,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11618 to 7761. [2022-09-16 10:39:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7761 states, 7745 states have (on average 2.0579728857327306) internal successors, (15939), 7760 states have internal predecessors, (15939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:29,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7761 states to 7761 states and 15939 transitions. [2022-09-16 10:39:29,100 INFO L78 Accepts]: Start accepts. Automaton has 7761 states and 15939 transitions. Word has length 91 [2022-09-16 10:39:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:29,100 INFO L495 AbstractCegarLoop]: Abstraction has 7761 states and 15939 transitions. [2022-09-16 10:39:29,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 7761 states and 15939 transitions. [2022-09-16 10:39:29,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:29,104 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:29,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:29,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-16 10:39:29,104 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:29,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1015699507, now seen corresponding path program 4 times [2022-09-16 10:39:29,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:29,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127292346] [2022-09-16 10:39:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:29,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:29,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:29,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127292346] [2022-09-16 10:39:29,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127292346] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:29,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:29,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855642430] [2022-09-16 10:39:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:29,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:29,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:29,499 INFO L87 Difference]: Start difference. First operand 7761 states and 15939 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:31,345 INFO L93 Difference]: Finished difference Result 11387 states and 23371 transitions. [2022-09-16 10:39:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:39:31,345 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:31,361 INFO L225 Difference]: With dead ends: 11387 [2022-09-16 10:39:31,361 INFO L226 Difference]: Without dead ends: 11387 [2022-09-16 10:39:31,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=532, Invalid=2120, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 10:39:31,362 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1453 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:31,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 4795 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:39:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11387 states. [2022-09-16 10:39:31,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11387 to 7704. [2022-09-16 10:39:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7704 states, 7688 states have (on average 2.0584027055150886) internal successors, (15825), 7703 states have internal predecessors, (15825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 15825 transitions. [2022-09-16 10:39:31,480 INFO L78 Accepts]: Start accepts. Automaton has 7704 states and 15825 transitions. Word has length 91 [2022-09-16 10:39:31,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:31,480 INFO L495 AbstractCegarLoop]: Abstraction has 7704 states and 15825 transitions. [2022-09-16 10:39:31,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7704 states and 15825 transitions. [2022-09-16 10:39:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:31,483 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:31,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:31,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 10:39:31,483 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:31,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:31,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1333429985, now seen corresponding path program 5 times [2022-09-16 10:39:31,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:31,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313859858] [2022-09-16 10:39:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:31,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:31,860 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 10:39:31,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:31,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313859858] [2022-09-16 10:39:31,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313859858] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:31,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:31,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882307222] [2022-09-16 10:39:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:31,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:31,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:31,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:31,862 INFO L87 Difference]: Start difference. First operand 7704 states and 15825 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:34,188 INFO L93 Difference]: Finished difference Result 12434 states and 25523 transitions. [2022-09-16 10:39:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 10:39:34,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:34,206 INFO L225 Difference]: With dead ends: 12434 [2022-09-16 10:39:34,206 INFO L226 Difference]: Without dead ends: 12434 [2022-09-16 10:39:34,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=637, Invalid=2443, Unknown=0, NotChecked=0, Total=3080 [2022-09-16 10:39:34,207 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1489 mSDsluCounter, 5460 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 5885 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:34,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 5885 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:39:34,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12434 states. [2022-09-16 10:39:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12434 to 7711. [2022-09-16 10:39:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7711 states, 7695 states have (on average 2.058349577647823) internal successors, (15839), 7710 states have internal predecessors, (15839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 15839 transitions. [2022-09-16 10:39:34,322 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 15839 transitions. Word has length 91 [2022-09-16 10:39:34,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:34,323 INFO L495 AbstractCegarLoop]: Abstraction has 7711 states and 15839 transitions. [2022-09-16 10:39:34,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 15839 transitions. [2022-09-16 10:39:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:34,326 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:34,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:34,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 10:39:34,326 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:34,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 484671411, now seen corresponding path program 6 times [2022-09-16 10:39:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804138222] [2022-09-16 10:39:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:34,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:34,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804138222] [2022-09-16 10:39:34,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804138222] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:34,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:34,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569863809] [2022-09-16 10:39:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:34,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:34,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:34,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:34,704 INFO L87 Difference]: Start difference. First operand 7711 states and 15839 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:37,292 INFO L93 Difference]: Finished difference Result 12378 states and 25392 transitions. [2022-09-16 10:39:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-16 10:39:37,295 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:37,316 INFO L225 Difference]: With dead ends: 12378 [2022-09-16 10:39:37,316 INFO L226 Difference]: Without dead ends: 12378 [2022-09-16 10:39:37,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=900, Invalid=3260, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:39:37,318 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 1752 mSDsluCounter, 5002 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:37,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 5465 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:39:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12378 states. [2022-09-16 10:39:37,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12378 to 7701. [2022-09-16 10:39:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7701 states, 7685 states have (on average 2.0584255042290174) internal successors, (15819), 7700 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7701 states to 7701 states and 15819 transitions. [2022-09-16 10:39:37,476 INFO L78 Accepts]: Start accepts. Automaton has 7701 states and 15819 transitions. Word has length 91 [2022-09-16 10:39:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:37,476 INFO L495 AbstractCegarLoop]: Abstraction has 7701 states and 15819 transitions. [2022-09-16 10:39:37,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7701 states and 15819 transitions. [2022-09-16 10:39:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:37,479 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:37,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:37,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 10:39:37,479 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:37,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1520241395, now seen corresponding path program 7 times [2022-09-16 10:39:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539872403] [2022-09-16 10:39:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:37,800 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 10:39:37,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:37,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539872403] [2022-09-16 10:39:37,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539872403] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:37,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:37,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750567944] [2022-09-16 10:39:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:37,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:37,802 INFO L87 Difference]: Start difference. First operand 7701 states and 15819 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:39,563 INFO L93 Difference]: Finished difference Result 11574 states and 23765 transitions. [2022-09-16 10:39:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:39:39,563 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:39,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:39,576 INFO L225 Difference]: With dead ends: 11574 [2022-09-16 10:39:39,576 INFO L226 Difference]: Without dead ends: 11574 [2022-09-16 10:39:39,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=523, Invalid=2129, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 10:39:39,577 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1464 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:39,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 5060 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:39:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11574 states. [2022-09-16 10:39:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11574 to 7706. [2022-09-16 10:39:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7690 states have (on average 2.0583875162548764) internal successors, (15829), 7705 states have internal predecessors, (15829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 15829 transitions. [2022-09-16 10:39:39,685 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 15829 transitions. Word has length 91 [2022-09-16 10:39:39,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:39,685 INFO L495 AbstractCegarLoop]: Abstraction has 7706 states and 15829 transitions. [2022-09-16 10:39:39,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 15829 transitions. [2022-09-16 10:39:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:39,688 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:39,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:39,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-09-16 10:39:39,688 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash 297860001, now seen corresponding path program 8 times [2022-09-16 10:39:39,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:39,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178594276] [2022-09-16 10:39:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:39,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:40,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178594276] [2022-09-16 10:39:40,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178594276] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:40,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:40,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815175457] [2022-09-16 10:39:40,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:40,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:40,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:40,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:40,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:40,048 INFO L87 Difference]: Start difference. First operand 7706 states and 15829 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:42,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:42,914 INFO L93 Difference]: Finished difference Result 12425 states and 25506 transitions. [2022-09-16 10:39:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-16 10:39:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:42,930 INFO L225 Difference]: With dead ends: 12425 [2022-09-16 10:39:42,930 INFO L226 Difference]: Without dead ends: 12425 [2022-09-16 10:39:42,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=990, Invalid=3566, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:39:42,932 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1843 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 5642 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:42,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 5642 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:39:42,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2022-09-16 10:39:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 7701. [2022-09-16 10:39:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7701 states, 7685 states have (on average 2.0584255042290174) internal successors, (15819), 7700 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7701 states to 7701 states and 15819 transitions. [2022-09-16 10:39:43,030 INFO L78 Accepts]: Start accepts. Automaton has 7701 states and 15819 transitions. Word has length 91 [2022-09-16 10:39:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:43,031 INFO L495 AbstractCegarLoop]: Abstraction has 7701 states and 15819 transitions. [2022-09-16 10:39:43,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7701 states and 15819 transitions. [2022-09-16 10:39:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:43,033 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:43,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:43,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-09-16 10:39:43,034 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:43,034 INFO L85 PathProgramCache]: Analyzing trace with hash -805838889, now seen corresponding path program 9 times [2022-09-16 10:39:43,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:43,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74958675] [2022-09-16 10:39:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:43,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:43,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74958675] [2022-09-16 10:39:43,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74958675] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:39:43,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:39:43,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:39:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529851287] [2022-09-16 10:39:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:39:43,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:39:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:43,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:39:43,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:39:43,359 INFO L87 Difference]: Start difference. First operand 7701 states and 15819 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:46,227 INFO L93 Difference]: Finished difference Result 11183 states and 22966 transitions. [2022-09-16 10:39:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:39:46,227 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:39:46,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:46,240 INFO L225 Difference]: With dead ends: 11183 [2022-09-16 10:39:46,241 INFO L226 Difference]: Without dead ends: 11183 [2022-09-16 10:39:46,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1067, Invalid=3763, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:39:46,242 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1562 mSDsluCounter, 4906 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:46,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 5315 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:39:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2022-09-16 10:39:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 7251. [2022-09-16 10:39:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7251 states, 7235 states have (on average 2.0592950932964755) internal successors, (14899), 7250 states have internal predecessors, (14899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7251 states to 7251 states and 14899 transitions. [2022-09-16 10:39:46,336 INFO L78 Accepts]: Start accepts. Automaton has 7251 states and 14899 transitions. Word has length 91 [2022-09-16 10:39:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:46,336 INFO L495 AbstractCegarLoop]: Abstraction has 7251 states and 14899 transitions. [2022-09-16 10:39:46,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:39:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7251 states and 14899 transitions. [2022-09-16 10:39:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:39:46,338 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:46,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:39:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-09-16 10:39:46,339 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:39:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1471187305, now seen corresponding path program 1 times [2022-09-16 10:39:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:46,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889028937] [2022-09-16 10:39:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:46,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:46,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:46,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889028937] [2022-09-16 10:39:46,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889028937] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:39:46,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656018417] [2022-09-16 10:39:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:46,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:39:46,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:39:46,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:39:46,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:39:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:46,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjunts are in the unsatisfiable core [2022-09-16 10:39:46,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:39:46,638 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 10:39:47,024 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-09-16 10:39:47,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 48 [2022-09-16 10:39:47,052 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 63 treesize of output 27 [2022-09-16 10:39:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:47,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:40:15,096 INFO L356 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2022-09-16 10:40:15,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 66 [2022-09-16 10:40:15,107 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 10:40:15,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 116 [2022-09-16 10:40:15,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 28 [2022-09-16 10:40:15,159 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 10:40:15,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 89 [2022-09-16 10:40:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 11 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:15,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656018417] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:40:15,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:40:15,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 22 [2022-09-16 10:40:15,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996912575] [2022-09-16 10:40:15,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:40:15,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:40:15,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:15,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:40:15,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=410, Unknown=32, NotChecked=0, Total=506 [2022-09-16 10:40:15,247 INFO L87 Difference]: Start difference. First operand 7251 states and 14899 transitions. Second operand has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 23 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:39,191 INFO L93 Difference]: Finished difference Result 9091 states and 18694 transitions. [2022-09-16 10:40:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:40:39,191 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 23 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:40:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:39,205 INFO L225 Difference]: With dead ends: 9091 [2022-09-16 10:40:39,205 INFO L226 Difference]: Without dead ends: 7789 [2022-09-16 10:40:39,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 171 SyntacticMatches, 15 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=285, Invalid=1074, Unknown=47, NotChecked=0, Total=1406 [2022-09-16 10:40:39,206 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 4255 mSDsluCounter, 5690 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4255 SdHoareTripleChecker+Valid, 6478 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 268 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4255 Valid, 6478 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 749 Invalid, 0 Unknown, 268 Unchecked, 0.4s Time] [2022-09-16 10:40:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-09-16 10:40:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 6386. [2022-09-16 10:40:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6386 states, 6380 states have (on average 2.0503134796238243) internal successors, (13081), 6385 states have internal predecessors, (13081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6386 states to 6386 states and 13081 transitions. [2022-09-16 10:40:39,288 INFO L78 Accepts]: Start accepts. Automaton has 6386 states and 13081 transitions. Word has length 91 [2022-09-16 10:40:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:39,289 INFO L495 AbstractCegarLoop]: Abstraction has 6386 states and 13081 transitions. [2022-09-16 10:40:39,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 23 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6386 states and 13081 transitions. [2022-09-16 10:40:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:40:39,291 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:39,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:39,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 10:40:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-09-16 10:40:39,492 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 187761037, now seen corresponding path program 10 times [2022-09-16 10:40:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:39,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591542746] [2022-09-16 10:40:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:39,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:39,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:39,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591542746] [2022-09-16 10:40:39,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591542746] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:39,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:39,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382380624] [2022-09-16 10:40:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:39,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:39,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:39,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:39,862 INFO L87 Difference]: Start difference. First operand 6386 states and 13081 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:42,584 INFO L93 Difference]: Finished difference Result 8704 states and 17810 transitions. [2022-09-16 10:40:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:40:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:40:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:42,597 INFO L225 Difference]: With dead ends: 8704 [2022-09-16 10:40:42,598 INFO L226 Difference]: Without dead ends: 8704 [2022-09-16 10:40:42,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1089, Invalid=3741, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:40:42,600 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1659 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:42,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 4124 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:42,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2022-09-16 10:40:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 6221. [2022-09-16 10:40:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6221 states, 6215 states have (on average 2.0500402252614642) internal successors, (12741), 6220 states have internal predecessors, (12741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 12741 transitions. [2022-09-16 10:40:42,720 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 12741 transitions. Word has length 91 [2022-09-16 10:40:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:42,720 INFO L495 AbstractCegarLoop]: Abstraction has 6221 states and 12741 transitions. [2022-09-16 10:40:42,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 12741 transitions. [2022-09-16 10:40:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:42,724 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:42,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-09-16 10:40:42,724 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2005764750, now seen corresponding path program 1 times [2022-09-16 10:40:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:42,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391365596] [2022-09-16 10:40:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:43,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391365596] [2022-09-16 10:40:43,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391365596] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:43,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:43,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434419293] [2022-09-16 10:40:43,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:43,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:43,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:43,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:43,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:43,113 INFO L87 Difference]: Start difference. First operand 6221 states and 12741 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:45,172 INFO L93 Difference]: Finished difference Result 10062 states and 20588 transitions. [2022-09-16 10:40:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-16 10:40:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:45,187 INFO L225 Difference]: With dead ends: 10062 [2022-09-16 10:40:45,187 INFO L226 Difference]: Without dead ends: 10062 [2022-09-16 10:40:45,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=585, Invalid=2277, Unknown=0, NotChecked=0, Total=2862 [2022-09-16 10:40:45,189 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1664 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:45,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 5180 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10062 states. [2022-09-16 10:40:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10062 to 7121. [2022-09-16 10:40:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7121 states, 7115 states have (on average 2.048208011243851) internal successors, (14573), 7120 states have internal predecessors, (14573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 14573 transitions. [2022-09-16 10:40:45,317 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 14573 transitions. Word has length 92 [2022-09-16 10:40:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:45,317 INFO L495 AbstractCegarLoop]: Abstraction has 7121 states and 14573 transitions. [2022-09-16 10:40:45,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 14573 transitions. [2022-09-16 10:40:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:45,321 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:45,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:45,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-09-16 10:40:45,322 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 746054524, now seen corresponding path program 2 times [2022-09-16 10:40:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:45,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557118133] [2022-09-16 10:40:45,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:45,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:45,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557118133] [2022-09-16 10:40:45,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557118133] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:45,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:45,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998783663] [2022-09-16 10:40:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:45,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:45,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:45,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:45,728 INFO L87 Difference]: Start difference. First operand 7121 states and 14573 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:48,047 INFO L93 Difference]: Finished difference Result 10731 states and 21958 transitions. [2022-09-16 10:40:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-09-16 10:40:48,047 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:48,091 INFO L225 Difference]: With dead ends: 10731 [2022-09-16 10:40:48,091 INFO L226 Difference]: Without dead ends: 10731 [2022-09-16 10:40:48,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=663, Invalid=2529, Unknown=0, NotChecked=0, Total=3192 [2022-09-16 10:40:48,092 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1355 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 5100 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:48,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 5100 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-09-16 10:40:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 7128. [2022-09-16 10:40:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7128 states, 7122 states have (on average 2.0481606290367873) internal successors, (14587), 7127 states have internal predecessors, (14587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7128 states to 7128 states and 14587 transitions. [2022-09-16 10:40:48,170 INFO L78 Accepts]: Start accepts. Automaton has 7128 states and 14587 transitions. Word has length 92 [2022-09-16 10:40:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:48,171 INFO L495 AbstractCegarLoop]: Abstraction has 7128 states and 14587 transitions. [2022-09-16 10:40:48,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7128 states and 14587 transitions. [2022-09-16 10:40:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:48,173 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:48,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:48,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-09-16 10:40:48,174 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1272622952, now seen corresponding path program 3 times [2022-09-16 10:40:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:48,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115956011] [2022-09-16 10:40:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:48,555 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 10:40:48,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:48,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115956011] [2022-09-16 10:40:48,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115956011] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:48,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:48,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:48,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650239479] [2022-09-16 10:40:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:48,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:48,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:48,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:48,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:48,557 INFO L87 Difference]: Start difference. First operand 7128 states and 14587 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:50,883 INFO L93 Difference]: Finished difference Result 10301 states and 21068 transitions. [2022-09-16 10:40:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 10:40:50,884 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:50,897 INFO L225 Difference]: With dead ends: 10301 [2022-09-16 10:40:50,897 INFO L226 Difference]: Without dead ends: 10301 [2022-09-16 10:40:50,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=688, Invalid=2392, Unknown=0, NotChecked=0, Total=3080 [2022-09-16 10:40:50,898 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1412 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:50,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 4855 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2022-09-16 10:40:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 7147. [2022-09-16 10:40:50,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7147 states, 7141 states have (on average 2.048172524856463) internal successors, (14626), 7146 states have internal predecessors, (14626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7147 states to 7147 states and 14626 transitions. [2022-09-16 10:40:50,986 INFO L78 Accepts]: Start accepts. Automaton has 7147 states and 14626 transitions. Word has length 92 [2022-09-16 10:40:50,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:50,986 INFO L495 AbstractCegarLoop]: Abstraction has 7147 states and 14626 transitions. [2022-09-16 10:40:50,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7147 states and 14626 transitions. [2022-09-16 10:40:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:50,989 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:50,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:50,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-09-16 10:40:50,989 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:50,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1421913142, now seen corresponding path program 4 times [2022-09-16 10:40:50,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:50,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365592155] [2022-09-16 10:40:50,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:50,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:51,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:51,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:51,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365592155] [2022-09-16 10:40:51,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365592155] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:51,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:51,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034027454] [2022-09-16 10:40:51,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:51,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:51,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:51,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:51,460 INFO L87 Difference]: Start difference. First operand 7147 states and 14626 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:53,410 INFO L93 Difference]: Finished difference Result 10052 states and 20562 transitions. [2022-09-16 10:40:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:40:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:53,426 INFO L225 Difference]: With dead ends: 10052 [2022-09-16 10:40:53,426 INFO L226 Difference]: Without dead ends: 10052 [2022-09-16 10:40:53,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=532, Invalid=2120, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 10:40:53,432 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 1446 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:53,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 5054 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2022-09-16 10:40:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 7090. [2022-09-16 10:40:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7090 states, 7084 states have (on average 2.048560135516657) internal successors, (14512), 7089 states have internal predecessors, (14512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7090 states to 7090 states and 14512 transitions. [2022-09-16 10:40:53,531 INFO L78 Accepts]: Start accepts. Automaton has 7090 states and 14512 transitions. Word has length 92 [2022-09-16 10:40:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:53,531 INFO L495 AbstractCegarLoop]: Abstraction has 7090 states and 14512 transitions. [2022-09-16 10:40:53,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 7090 states and 14512 transitions. [2022-09-16 10:40:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:53,534 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:53,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:53,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-09-16 10:40:53,535 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:53,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:53,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1613343928, now seen corresponding path program 5 times [2022-09-16 10:40:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:53,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720002489] [2022-09-16 10:40:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:53,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:53,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:53,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720002489] [2022-09-16 10:40:53,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720002489] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:53,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:53,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:53,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011111663] [2022-09-16 10:40:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:53,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:53,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:53,915 INFO L87 Difference]: Start difference. First operand 7090 states and 14512 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:56,061 INFO L93 Difference]: Finished difference Result 11099 states and 22714 transitions. [2022-09-16 10:40:56,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 10:40:56,061 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:56,073 INFO L225 Difference]: With dead ends: 11099 [2022-09-16 10:40:56,074 INFO L226 Difference]: Without dead ends: 11099 [2022-09-16 10:40:56,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=637, Invalid=2443, Unknown=0, NotChecked=0, Total=3080 [2022-09-16 10:40:56,075 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 1380 mSDsluCounter, 4166 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:56,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 4571 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:40:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2022-09-16 10:40:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 7097. [2022-09-16 10:40:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 7091 states have (on average 2.048512198561557) internal successors, (14526), 7096 states have internal predecessors, (14526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 14526 transitions. [2022-09-16 10:40:56,173 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 14526 transitions. Word has length 92 [2022-09-16 10:40:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:56,173 INFO L495 AbstractCegarLoop]: Abstraction has 7097 states and 14526 transitions. [2022-09-16 10:40:56,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 14526 transitions. [2022-09-16 10:40:56,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:56,176 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:56,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:56,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-09-16 10:40:56,177 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2139912356, now seen corresponding path program 6 times [2022-09-16 10:40:56,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:56,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200134299] [2022-09-16 10:40:56,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:56,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:56,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200134299] [2022-09-16 10:40:56,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200134299] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:56,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:56,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:56,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588667692] [2022-09-16 10:40:56,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:56,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:56,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:56,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:56,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:56,568 INFO L87 Difference]: Start difference. First operand 7097 states and 14526 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:59,073 INFO L93 Difference]: Finished difference Result 11110 states and 22719 transitions. [2022-09-16 10:40:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-16 10:40:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:40:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:59,088 INFO L225 Difference]: With dead ends: 11110 [2022-09-16 10:40:59,088 INFO L226 Difference]: Without dead ends: 11110 [2022-09-16 10:40:59,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=776, Invalid=2646, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:40:59,089 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1526 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 4762 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:59,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 4762 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:40:59,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2022-09-16 10:40:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 7087. [2022-09-16 10:40:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7087 states, 7081 states have (on average 2.0485807089394155) internal successors, (14506), 7086 states have internal predecessors, (14506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7087 states to 7087 states and 14506 transitions. [2022-09-16 10:40:59,183 INFO L78 Accepts]: Start accepts. Automaton has 7087 states and 14506 transitions. Word has length 92 [2022-09-16 10:40:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:59,183 INFO L495 AbstractCegarLoop]: Abstraction has 7087 states and 14506 transitions. [2022-09-16 10:40:59,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:40:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 7087 states and 14506 transitions. [2022-09-16 10:40:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:40:59,186 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:59,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:59,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-09-16 10:40:59,186 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:40:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash 117157514, now seen corresponding path program 7 times [2022-09-16 10:40:59,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:59,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353907616] [2022-09-16 10:40:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:59,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:59,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:59,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353907616] [2022-09-16 10:40:59,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353907616] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:40:59,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:40:59,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:40:59,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064248475] [2022-09-16 10:40:59,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:40:59,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:40:59,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:40:59,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:40:59,547 INFO L87 Difference]: Start difference. First operand 7087 states and 14506 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:01,568 INFO L93 Difference]: Finished difference Result 10239 states and 20956 transitions. [2022-09-16 10:41:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:41:01,569 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:41:01,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:01,584 INFO L225 Difference]: With dead ends: 10239 [2022-09-16 10:41:01,584 INFO L226 Difference]: Without dead ends: 10239 [2022-09-16 10:41:01,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=523, Invalid=2129, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 10:41:01,586 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1265 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:01,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 5404 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:41:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-09-16 10:41:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 7092. [2022-09-16 10:41:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7092 states, 7086 states have (on average 2.0485464295794524) internal successors, (14516), 7091 states have internal predecessors, (14516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7092 states to 7092 states and 14516 transitions. [2022-09-16 10:41:01,687 INFO L78 Accepts]: Start accepts. Automaton has 7092 states and 14516 transitions. Word has length 92 [2022-09-16 10:41:01,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:01,687 INFO L495 AbstractCegarLoop]: Abstraction has 7092 states and 14516 transitions. [2022-09-16 10:41:01,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7092 states and 14516 transitions. [2022-09-16 10:41:01,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:41:01,690 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:01,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:01,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-09-16 10:41:01,690 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:01,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash 643725942, now seen corresponding path program 8 times [2022-09-16 10:41:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:01,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104154111] [2022-09-16 10:41:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:02,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:02,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104154111] [2022-09-16 10:41:02,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104154111] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:02,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:02,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:41:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479142631] [2022-09-16 10:41:02,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:02,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:41:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:41:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:41:02,073 INFO L87 Difference]: Start difference. First operand 7092 states and 14516 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:05,220 INFO L93 Difference]: Finished difference Result 11157 states and 22833 transitions. [2022-09-16 10:41:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-16 10:41:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:41:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:05,233 INFO L225 Difference]: With dead ends: 11157 [2022-09-16 10:41:05,233 INFO L226 Difference]: Without dead ends: 11157 [2022-09-16 10:41:05,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=990, Invalid=3566, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:41:05,235 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 1389 mSDsluCounter, 5221 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 5643 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:05,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 5643 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:41:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11157 states. [2022-09-16 10:41:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11157 to 7087. [2022-09-16 10:41:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7087 states, 7081 states have (on average 2.0485807089394155) internal successors, (14506), 7086 states have internal predecessors, (14506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7087 states to 7087 states and 14506 transitions. [2022-09-16 10:41:05,339 INFO L78 Accepts]: Start accepts. Automaton has 7087 states and 14506 transitions. Word has length 92 [2022-09-16 10:41:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:05,339 INFO L495 AbstractCegarLoop]: Abstraction has 7087 states and 14506 transitions. [2022-09-16 10:41:05,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7087 states and 14506 transitions. [2022-09-16 10:41:05,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:41:05,342 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:05,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:05,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-09-16 10:41:05,342 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:05,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 788798720, now seen corresponding path program 9 times [2022-09-16 10:41:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:05,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709335949] [2022-09-16 10:41:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:05,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:05,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709335949] [2022-09-16 10:41:05,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709335949] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:05,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:05,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:41:05,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356334731] [2022-09-16 10:41:05,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:05,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:41:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:05,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:41:05,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:41:05,679 INFO L87 Difference]: Start difference. First operand 7087 states and 14506 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:09,047 INFO L93 Difference]: Finished difference Result 10021 states and 20510 transitions. [2022-09-16 10:41:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:41:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:41:09,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:09,058 INFO L225 Difference]: With dead ends: 10021 [2022-09-16 10:41:09,059 INFO L226 Difference]: Without dead ends: 10021 [2022-09-16 10:41:09,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1080, Invalid=3890, Unknown=0, NotChecked=0, Total=4970 [2022-09-16 10:41:09,059 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1432 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:09,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5353 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:41:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10021 states. [2022-09-16 10:41:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10021 to 6637. [2022-09-16 10:41:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6631 states have (on average 2.048861408535666) internal successors, (13586), 6636 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 13586 transitions. [2022-09-16 10:41:09,143 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 13586 transitions. Word has length 92 [2022-09-16 10:41:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:09,143 INFO L495 AbstractCegarLoop]: Abstraction has 6637 states and 13586 transitions. [2022-09-16 10:41:09,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 13586 transitions. [2022-09-16 10:41:09,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:41:09,146 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:09,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:09,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-09-16 10:41:09,146 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:09,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1525625354, now seen corresponding path program 10 times [2022-09-16 10:41:09,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:09,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243872971] [2022-09-16 10:41:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:09,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:09,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:09,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243872971] [2022-09-16 10:41:09,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243872971] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:09,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:09,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-09-16 10:41:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077281618] [2022-09-16 10:41:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:09,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-09-16 10:41:09,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-09-16 10:41:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-09-16 10:41:09,501 INFO L87 Difference]: Start difference. First operand 6637 states and 13586 transitions. Second operand has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:12,683 INFO L93 Difference]: Finished difference Result 8778 states and 17960 transitions. [2022-09-16 10:41:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:41:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-09-16 10:41:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:12,694 INFO L225 Difference]: With dead ends: 8778 [2022-09-16 10:41:12,694 INFO L226 Difference]: Without dead ends: 8778 [2022-09-16 10:41:12,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1089, Invalid=3741, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:41:12,696 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1625 mSDsluCounter, 4246 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:12,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 4586 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:41:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8778 states. [2022-09-16 10:41:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8778 to 6266. [2022-09-16 10:41:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6266 states, 6260 states have (on average 2.0490415335463257) internal successors, (12827), 6265 states have internal predecessors, (12827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6266 states to 6266 states and 12827 transitions. [2022-09-16 10:41:12,792 INFO L78 Accepts]: Start accepts. Automaton has 6266 states and 12827 transitions. Word has length 92 [2022-09-16 10:41:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:12,792 INFO L495 AbstractCegarLoop]: Abstraction has 6266 states and 12827 transitions. [2022-09-16 10:41:12,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call 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 L276 IsEmpty]: Start isEmpty. Operand 6266 states and 12827 transitions. [2022-09-16 10:41:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:12,794 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:12,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:12,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-09-16 10:41:12,795 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:12,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2051004697, now seen corresponding path program 1 times [2022-09-16 10:41:12,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:12,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131539141] [2022-09-16 10:41:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:12,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:13,215 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 10:41:13,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:13,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131539141] [2022-09-16 10:41:13,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131539141] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:13,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:13,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:41:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287851713] [2022-09-16 10:41:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:13,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:41:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:41:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:41:13,216 INFO L87 Difference]: Start difference. First operand 6266 states and 12827 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:15,721 INFO L93 Difference]: Finished difference Result 11615 states and 23774 transitions. [2022-09-16 10:41:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:41:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:15,736 INFO L225 Difference]: With dead ends: 11615 [2022-09-16 10:41:15,736 INFO L226 Difference]: Without dead ends: 11615 [2022-09-16 10:41:15,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=747, Invalid=3159, Unknown=0, NotChecked=0, Total=3906 [2022-09-16 10:41:15,737 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1831 mSDsluCounter, 4657 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:15,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 5069 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:41:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11615 states. [2022-09-16 10:41:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11615 to 7872. [2022-09-16 10:41:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7872 states, 7866 states have (on average 2.0502161200101705) internal successors, (16127), 7871 states have internal predecessors, (16127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7872 states to 7872 states and 16127 transitions. [2022-09-16 10:41:15,852 INFO L78 Accepts]: Start accepts. Automaton has 7872 states and 16127 transitions. Word has length 96 [2022-09-16 10:41:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:15,852 INFO L495 AbstractCegarLoop]: Abstraction has 7872 states and 16127 transitions. [2022-09-16 10:41:15,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 7872 states and 16127 transitions. [2022-09-16 10:41:15,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:15,856 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:15,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:15,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-09-16 10:41:15,857 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:15,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1186343343, now seen corresponding path program 2 times [2022-09-16 10:41:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:15,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365889425] [2022-09-16 10:41:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:16,496 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 10:41:16,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:16,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365889425] [2022-09-16 10:41:16,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365889425] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:16,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:16,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:16,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485995039] [2022-09-16 10:41:16,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:16,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:16,498 INFO L87 Difference]: Start difference. First operand 7872 states and 16127 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:20,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:20,912 INFO L93 Difference]: Finished difference Result 13689 states and 27997 transitions. [2022-09-16 10:41:20,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:41:20,912 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:20,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:20,930 INFO L225 Difference]: With dead ends: 13689 [2022-09-16 10:41:20,931 INFO L226 Difference]: Without dead ends: 13689 [2022-09-16 10:41:20,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1339 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:41:20,932 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2282 mSDsluCounter, 6105 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 6534 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:20,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 6534 Invalid, 2380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:41:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13689 states. [2022-09-16 10:41:21,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13689 to 8331. [2022-09-16 10:41:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8331 states, 8325 states have (on average 2.0498498498498496) internal successors, (17065), 8330 states have internal predecessors, (17065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8331 states to 8331 states and 17065 transitions. [2022-09-16 10:41:21,039 INFO L78 Accepts]: Start accepts. Automaton has 8331 states and 17065 transitions. Word has length 96 [2022-09-16 10:41:21,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:21,040 INFO L495 AbstractCegarLoop]: Abstraction has 8331 states and 17065 transitions. [2022-09-16 10:41:21,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8331 states and 17065 transitions. [2022-09-16 10:41:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:21,044 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:21,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:21,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-09-16 10:41:21,045 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:21,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash 928391407, now seen corresponding path program 3 times [2022-09-16 10:41:21,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:21,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660631470] [2022-09-16 10:41:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:21,630 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 10:41:21,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:21,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660631470] [2022-09-16 10:41:21,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660631470] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:21,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:21,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9781485] [2022-09-16 10:41:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:21,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:21,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:21,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:21,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:21,632 INFO L87 Difference]: Start difference. First operand 8331 states and 17065 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:25,989 INFO L93 Difference]: Finished difference Result 15121 states and 30944 transitions. [2022-09-16 10:41:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:41:25,989 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:26,005 INFO L225 Difference]: With dead ends: 15121 [2022-09-16 10:41:26,005 INFO L226 Difference]: Without dead ends: 15121 [2022-09-16 10:41:26,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1171, Invalid=4991, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:41:26,006 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 2114 mSDsluCounter, 6559 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 7019 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:26,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 7019 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:41:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15121 states. [2022-09-16 10:41:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15121 to 8331. [2022-09-16 10:41:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8331 states, 8325 states have (on average 2.0498498498498496) internal successors, (17065), 8330 states have internal predecessors, (17065), 0 states have call successors, (0), 0 states have call 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 8331 states to 8331 states and 17065 transitions. [2022-09-16 10:41:26,112 INFO L78 Accepts]: Start accepts. Automaton has 8331 states and 17065 transitions. Word has length 96 [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 8331 states and 17065 transitions. [2022-09-16 10:41:26,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call 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 L276 IsEmpty]: Start isEmpty. Operand 8331 states and 17065 transitions. [2022-09-16 10:41:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [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, 1, 1, 1, 1, 1, 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: SelfDestructingSolverStorable37 [2022-09-16 10:41:26,116 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_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 -870612915, now seen corresponding path program 4 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 [665033086] [2022-09-16 10:41:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:26,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:26,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665033086] [2022-09-16 10:41:26,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665033086] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:26,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:26,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:26,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707318679] [2022-09-16 10:41:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:26,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:26,702 INFO L87 Difference]: Start difference. First operand 8331 states and 17065 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:30,757 INFO L93 Difference]: Finished difference Result 13580 states and 27785 transitions. [2022-09-16 10:41:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:41:30,758 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:30,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:30,774 INFO L225 Difference]: With dead ends: 13580 [2022-09-16 10:41:30,774 INFO L226 Difference]: Without dead ends: 13580 [2022-09-16 10:41:30,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1110, Invalid=4742, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:41:30,775 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 1908 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 7140 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:30,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 7140 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:41:30,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13580 states. [2022-09-16 10:41:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13580 to 7887. [2022-09-16 10:41:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7881 states have (on average 2.0501205430782896) internal successors, (16157), 7886 states have internal predecessors, (16157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 16157 transitions. [2022-09-16 10:41:30,893 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 16157 transitions. Word has length 96 [2022-09-16 10:41:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:30,893 INFO L495 AbstractCegarLoop]: Abstraction has 7887 states and 16157 transitions. [2022-09-16 10:41:30,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 16157 transitions. [2022-09-16 10:41:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:30,896 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:30,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:30,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-09-16 10:41:30,897 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1697097515, now seen corresponding path program 5 times [2022-09-16 10:41:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:30,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649359045] [2022-09-16 10:41:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:31,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:31,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649359045] [2022-09-16 10:41:31,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649359045] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:31,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:31,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:41:31,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258575561] [2022-09-16 10:41:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:31,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:41:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:41:31,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:41:31,320 INFO L87 Difference]: Start difference. First operand 7887 states and 16157 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:34,296 INFO L93 Difference]: Finished difference Result 13005 states and 26642 transitions. [2022-09-16 10:41:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-16 10:41:34,297 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:34,314 INFO L225 Difference]: With dead ends: 13005 [2022-09-16 10:41:34,315 INFO L226 Difference]: Without dead ends: 13005 [2022-09-16 10:41:34,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=825, Invalid=3465, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:41:34,316 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1605 mSDsluCounter, 6118 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 6567 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:34,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 6567 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:41:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13005 states. [2022-09-16 10:41:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13005 to 8395. [2022-09-16 10:41:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 8389 states have (on average 2.04994635832638) internal successors, (17197), 8394 states have internal predecessors, (17197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 17197 transitions. [2022-09-16 10:41:34,455 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 17197 transitions. Word has length 96 [2022-09-16 10:41:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:34,455 INFO L495 AbstractCegarLoop]: Abstraction has 8395 states and 17197 transitions. [2022-09-16 10:41:34,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 17197 transitions. [2022-09-16 10:41:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:34,459 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:34,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:34,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-09-16 10:41:34,459 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:34,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1540250525, now seen corresponding path program 6 times [2022-09-16 10:41:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:34,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37255863] [2022-09-16 10:41:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:34,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:35,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:35,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37255863] [2022-09-16 10:41:35,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37255863] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:35,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:35,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035772331] [2022-09-16 10:41:35,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:35,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:35,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:35,095 INFO L87 Difference]: Start difference. First operand 8395 states and 17197 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:39,422 INFO L93 Difference]: Finished difference Result 13931 states and 28505 transitions. [2022-09-16 10:41:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:41:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:39,446 INFO L225 Difference]: With dead ends: 13931 [2022-09-16 10:41:39,447 INFO L226 Difference]: Without dead ends: 13931 [2022-09-16 10:41:39,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:41:39,448 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 2334 mSDsluCounter, 5319 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 5781 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:39,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 5781 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:41:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13931 states. [2022-09-16 10:41:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13931 to 8335. [2022-09-16 10:41:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8335 states, 8329 states have (on average 2.0503061592027856) internal successors, (17077), 8334 states have internal predecessors, (17077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8335 states to 8335 states and 17077 transitions. [2022-09-16 10:41:39,631 INFO L78 Accepts]: Start accepts. Automaton has 8335 states and 17077 transitions. Word has length 96 [2022-09-16 10:41:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:39,631 INFO L495 AbstractCegarLoop]: Abstraction has 8335 states and 17077 transitions. [2022-09-16 10:41:39,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8335 states and 17077 transitions. [2022-09-16 10:41:39,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:39,636 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:39,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:39,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-09-16 10:41:39,636 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash -258753797, now seen corresponding path program 7 times [2022-09-16 10:41:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127111603] [2022-09-16 10:41:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:39,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:40,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:40,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127111603] [2022-09-16 10:41:40,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127111603] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:40,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:40,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:40,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619347333] [2022-09-16 10:41:40,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:40,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:40,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:40,249 INFO L87 Difference]: Start difference. First operand 8335 states and 17077 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:44,603 INFO L93 Difference]: Finished difference Result 14353 states and 29368 transitions. [2022-09-16 10:41:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:41:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:44,626 INFO L225 Difference]: With dead ends: 14353 [2022-09-16 10:41:44,626 INFO L226 Difference]: Without dead ends: 14353 [2022-09-16 10:41:44,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1110, Invalid=4742, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:41:44,627 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 1751 mSDsluCounter, 7836 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 8418 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:44,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 8418 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2711 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:41:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14353 states. [2022-09-16 10:41:44,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14353 to 7894. [2022-09-16 10:41:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7894 states, 7888 states have (on average 2.050076064908722) internal successors, (16171), 7893 states have internal predecessors, (16171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7894 states to 7894 states and 16171 transitions. [2022-09-16 10:41:44,808 INFO L78 Accepts]: Start accepts. Automaton has 7894 states and 16171 transitions. Word has length 96 [2022-09-16 10:41:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:44,808 INFO L495 AbstractCegarLoop]: Abstraction has 7894 states and 16171 transitions. [2022-09-16 10:41:44,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7894 states and 16171 transitions. [2022-09-16 10:41:44,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:44,811 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:44,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:44,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-09-16 10:41:44,811 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:44,812 INFO L85 PathProgramCache]: Analyzing trace with hash 163618495, now seen corresponding path program 8 times [2022-09-16 10:41:44,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:44,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865222964] [2022-09-16 10:41:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:45,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865222964] [2022-09-16 10:41:45,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865222964] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:45,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:45,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:41:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70941654] [2022-09-16 10:41:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:45,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:41:45,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:41:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:41:45,299 INFO L87 Difference]: Start difference. First operand 7894 states and 16171 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:49,259 INFO L93 Difference]: Finished difference Result 12921 states and 26483 transitions. [2022-09-16 10:41:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:41:49,260 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:49,277 INFO L225 Difference]: With dead ends: 12921 [2022-09-16 10:41:49,278 INFO L226 Difference]: Without dead ends: 12921 [2022-09-16 10:41:49,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1085, Invalid=4317, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:41:49,279 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 2059 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 6913 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:49,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 6913 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:41:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12921 states. [2022-09-16 10:41:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12921 to 7939. [2022-09-16 10:41:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:41:49,395 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:41:49,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:49,399 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:41:49,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:41:49,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:49,403 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:49,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:49,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-09-16 10:41:49,404 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:49,405 INFO L85 PathProgramCache]: Analyzing trace with hash -575033703, now seen corresponding path program 9 times [2022-09-16 10:41:49,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:49,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784914380] [2022-09-16 10:41:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:49,840 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 10:41:49,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:49,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784914380] [2022-09-16 10:41:49,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784914380] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:49,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:49,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:41:49,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872603038] [2022-09-16 10:41:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:49,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:41:49,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:49,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:41:49,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:41:49,843 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:55,112 INFO L93 Difference]: Finished difference Result 14413 states and 29523 transitions. [2022-09-16 10:41:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-16 10:41:55,112 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:41:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:55,132 INFO L225 Difference]: With dead ends: 14413 [2022-09-16 10:41:55,132 INFO L226 Difference]: Without dead ends: 14413 [2022-09-16 10:41:55,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1728 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1457, Invalid=6199, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:41:55,134 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1846 mSDsluCounter, 7524 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 8054 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 8054 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:41:55,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14413 states. [2022-09-16 10:41:55,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14413 to 8307. [2022-09-16 10:41:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8307 states, 8301 states have (on average 2.0507167811107094) internal successors, (17023), 8306 states have internal predecessors, (17023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 17023 transitions. [2022-09-16 10:41:55,256 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 17023 transitions. Word has length 96 [2022-09-16 10:41:55,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:55,256 INFO L495 AbstractCegarLoop]: Abstraction has 8307 states and 17023 transitions. [2022-09-16 10:41:55,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 17023 transitions. [2022-09-16 10:41:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:41:55,261 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:55,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:55,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-09-16 10:41:55,262 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:41:55,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:55,262 INFO L85 PathProgramCache]: Analyzing trace with hash 256561999, now seen corresponding path program 10 times [2022-09-16 10:41:55,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:55,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11059195] [2022-09-16 10:41:55,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:55,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:55,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11059195] [2022-09-16 10:41:55,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11059195] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:55,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:55,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:41:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321426733] [2022-09-16 10:41:55,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:55,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:41:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:41:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:41:55,868 INFO L87 Difference]: Start difference. First operand 8307 states and 17023 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:00,044 INFO L93 Difference]: Finished difference Result 13133 states and 26856 transitions. [2022-09-16 10:42:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:42:00,045 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:00,060 INFO L225 Difference]: With dead ends: 13133 [2022-09-16 10:42:00,061 INFO L226 Difference]: Without dead ends: 13133 [2022-09-16 10:42:00,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1133, Invalid=4719, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:42:00,062 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2065 mSDsluCounter, 6103 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 6621 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 6621 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:42:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2022-09-16 10:42:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 7939. [2022-09-16 10:42:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:42:00,166 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:42:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:00,166 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:42:00,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:42:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:00,169 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:00,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:00,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-09-16 10:42:00,170 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:00,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:00,170 INFO L85 PathProgramCache]: Analyzing trace with hash 670770291, now seen corresponding path program 11 times [2022-09-16 10:42:00,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:00,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110106274] [2022-09-16 10:42:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:00,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:00,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:00,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110106274] [2022-09-16 10:42:00,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110106274] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:00,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:00,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:42:00,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923942926] [2022-09-16 10:42:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:00,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:42:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:42:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:42:00,645 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:04,222 INFO L93 Difference]: Finished difference Result 12825 states and 26280 transitions. [2022-09-16 10:42:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:42:04,223 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:04,238 INFO L225 Difference]: With dead ends: 12825 [2022-09-16 10:42:04,238 INFO L226 Difference]: Without dead ends: 12825 [2022-09-16 10:42:04,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=938, Invalid=3892, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:42:04,239 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 1711 mSDsluCounter, 5991 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 6443 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:04,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 6443 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:42:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12825 states. [2022-09-16 10:42:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12825 to 8345. [2022-09-16 10:42:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8345 states, 8339 states have (on average 2.0504856697445737) internal successors, (17099), 8344 states have internal predecessors, (17099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8345 states to 8345 states and 17099 transitions. [2022-09-16 10:42:04,346 INFO L78 Accepts]: Start accepts. Automaton has 8345 states and 17099 transitions. Word has length 96 [2022-09-16 10:42:04,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:04,346 INFO L495 AbstractCegarLoop]: Abstraction has 8345 states and 17099 transitions. [2022-09-16 10:42:04,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 8345 states and 17099 transitions. [2022-09-16 10:42:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:04,350 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:04,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:04,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-09-16 10:42:04,350 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:04,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:04,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1502365993, now seen corresponding path program 12 times [2022-09-16 10:42:04,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:04,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255256550] [2022-09-16 10:42:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:04,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:04,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:04,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255256550] [2022-09-16 10:42:04,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255256550] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:04,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:04,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:04,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989466201] [2022-09-16 10:42:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:04,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:04,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:04,848 INFO L87 Difference]: Start difference. First operand 8345 states and 17099 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:09,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:09,211 INFO L93 Difference]: Finished difference Result 13542 states and 27705 transitions. [2022-09-16 10:42:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:42:09,212 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:09,231 INFO L225 Difference]: With dead ends: 13542 [2022-09-16 10:42:09,231 INFO L226 Difference]: Without dead ends: 13542 [2022-09-16 10:42:09,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1276, Invalid=5366, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:42:09,233 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 2384 mSDsluCounter, 6090 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:09,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 6586 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:42:09,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13542 states. [2022-09-16 10:42:09,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13542 to 7939. [2022-09-16 10:42:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:42:09,352 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:42:09,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:09,353 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:42:09,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:42:09,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:09,356 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:09,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:09,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-09-16 10:42:09,356 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:09,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1706190951, now seen corresponding path program 13 times [2022-09-16 10:42:09,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:09,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176160916] [2022-09-16 10:42:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:09,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:09,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:09,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176160916] [2022-09-16 10:42:09,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176160916] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:09,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:09,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:42:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760322295] [2022-09-16 10:42:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:09,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:42:09,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:42:09,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:42:09,779 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:12,500 INFO L93 Difference]: Finished difference Result 13150 states and 26933 transitions. [2022-09-16 10:42:12,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-09-16 10:42:12,500 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:12,518 INFO L225 Difference]: With dead ends: 13150 [2022-09-16 10:42:12,518 INFO L226 Difference]: Without dead ends: 13150 [2022-09-16 10:42:12,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=798, Invalid=3362, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:42:12,519 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 1651 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:12,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 5677 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:42:12,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13150 states. [2022-09-16 10:42:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13150 to 8459. [2022-09-16 10:42:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8459 states, 8453 states have (on average 2.0498048030285108) internal successors, (17327), 8458 states have internal predecessors, (17327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8459 states to 8459 states and 17327 transitions. [2022-09-16 10:42:12,630 INFO L78 Accepts]: Start accepts. Automaton has 8459 states and 17327 transitions. Word has length 96 [2022-09-16 10:42:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:12,630 INFO L495 AbstractCegarLoop]: Abstraction has 8459 states and 17327 transitions. [2022-09-16 10:42:12,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8459 states and 17327 transitions. [2022-09-16 10:42:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:12,634 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:12,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:12,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-09-16 10:42:12,634 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:12,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:12,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1531157089, now seen corresponding path program 14 times [2022-09-16 10:42:12,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:12,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249305947] [2022-09-16 10:42:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:12,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:13,271 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 10:42:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249305947] [2022-09-16 10:42:13,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249305947] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:13,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:13,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:13,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852767419] [2022-09-16 10:42:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:13,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:13,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:13,273 INFO L87 Difference]: Start difference. First operand 8459 states and 17327 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:17,679 INFO L93 Difference]: Finished difference Result 14262 states and 29177 transitions. [2022-09-16 10:42:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:42:17,679 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:17,698 INFO L225 Difference]: With dead ends: 14262 [2022-09-16 10:42:17,698 INFO L226 Difference]: Without dead ends: 14262 [2022-09-16 10:42:17,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1171, Invalid=4991, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:42:17,699 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1986 mSDsluCounter, 6171 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 6651 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:17,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 6651 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:42:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14262 states. [2022-09-16 10:42:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14262 to 8459. [2022-09-16 10:42:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8459 states, 8453 states have (on average 2.0498048030285108) internal successors, (17327), 8458 states have internal predecessors, (17327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8459 states to 8459 states and 17327 transitions. [2022-09-16 10:42:17,826 INFO L78 Accepts]: Start accepts. Automaton has 8459 states and 17327 transitions. Word has length 96 [2022-09-16 10:42:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:17,826 INFO L495 AbstractCegarLoop]: Abstraction has 8459 states and 17327 transitions. [2022-09-16 10:42:17,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8459 states and 17327 transitions. [2022-09-16 10:42:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:17,831 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:17,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:17,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-09-16 10:42:17,832 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:17,832 INFO L85 PathProgramCache]: Analyzing trace with hash -267847233, now seen corresponding path program 15 times [2022-09-16 10:42:17,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:17,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666540009] [2022-09-16 10:42:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:17,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:18,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666540009] [2022-09-16 10:42:18,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666540009] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:18,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183743663] [2022-09-16 10:42:18,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:18,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:18,440 INFO L87 Difference]: Start difference. First operand 8459 states and 17327 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:22,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:22,900 INFO L93 Difference]: Finished difference Result 14558 states and 29779 transitions. [2022-09-16 10:42:22,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:42:22,901 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:22,920 INFO L225 Difference]: With dead ends: 14558 [2022-09-16 10:42:22,921 INFO L226 Difference]: Without dead ends: 14558 [2022-09-16 10:42:22,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1110, Invalid=4742, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:42:22,921 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 1885 mSDsluCounter, 9120 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 9720 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:22,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 9720 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3082 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:42:22,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14558 states. [2022-09-16 10:42:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14558 to 7939. [2022-09-16 10:42:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:42:23,046 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:42:23,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:23,047 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:42:23,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:42:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:23,050 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:23,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:23,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-09-16 10:42:23,050 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:23,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1541507257, now seen corresponding path program 16 times [2022-09-16 10:42:23,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:23,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887991273] [2022-09-16 10:42:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:23,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:23,440 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 10:42:23,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:23,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887991273] [2022-09-16 10:42:23,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887991273] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:23,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:23,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:42:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250582882] [2022-09-16 10:42:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:23,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:42:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:42:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:42:23,441 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:26,061 INFO L93 Difference]: Finished difference Result 13188 states and 27009 transitions. [2022-09-16 10:42:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:42:26,062 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:26,082 INFO L225 Difference]: With dead ends: 13188 [2022-09-16 10:42:26,082 INFO L226 Difference]: Without dead ends: 13188 [2022-09-16 10:42:26,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=772, Invalid=3260, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:42:26,083 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1659 mSDsluCounter, 5526 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:26,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 6001 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:42:26,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2022-09-16 10:42:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 8478. [2022-09-16 10:42:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 8472 states have (on average 2.049693106704438) internal successors, (17365), 8477 states have internal predecessors, (17365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 17365 transitions. [2022-09-16 10:42:26,220 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 17365 transitions. Word has length 96 [2022-09-16 10:42:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:26,221 INFO L495 AbstractCegarLoop]: Abstraction has 8478 states and 17365 transitions. [2022-09-16 10:42:26,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 17365 transitions. [2022-09-16 10:42:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:26,227 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:26,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:26,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-09-16 10:42:26,228 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1695840783, now seen corresponding path program 17 times [2022-09-16 10:42:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850572830] [2022-09-16 10:42:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:26,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:26,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:26,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850572830] [2022-09-16 10:42:26,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850572830] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:26,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:26,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:26,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401726399] [2022-09-16 10:42:26,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:26,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:26,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:26,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:26,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:26,882 INFO L87 Difference]: Start difference. First operand 8478 states and 17365 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:31,242 INFO L93 Difference]: Finished difference Result 14300 states and 29253 transitions. [2022-09-16 10:42:31,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:42:31,243 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:31,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:31,259 INFO L225 Difference]: With dead ends: 14300 [2022-09-16 10:42:31,260 INFO L226 Difference]: Without dead ends: 14300 [2022-09-16 10:42:31,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1171, Invalid=4991, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:42:31,261 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2255 mSDsluCounter, 6087 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 6569 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:31,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2255 Valid, 6569 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:42:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14300 states. [2022-09-16 10:42:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14300 to 8478. [2022-09-16 10:42:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 8472 states have (on average 2.049693106704438) internal successors, (17365), 8477 states have internal predecessors, (17365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 17365 transitions. [2022-09-16 10:42:31,372 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 17365 transitions. Word has length 96 [2022-09-16 10:42:31,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:31,372 INFO L495 AbstractCegarLoop]: Abstraction has 8478 states and 17365 transitions. [2022-09-16 10:42:31,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 17365 transitions. [2022-09-16 10:42:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:31,378 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:31,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-09-16 10:42:31,378 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:31,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash -103163539, now seen corresponding path program 18 times [2022-09-16 10:42:31,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:31,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035588128] [2022-09-16 10:42:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:31,993 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 10:42:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:31,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035588128] [2022-09-16 10:42:31,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035588128] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:31,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587192375] [2022-09-16 10:42:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:31,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:31,994 INFO L87 Difference]: Start difference. First operand 8478 states and 17365 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:36,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:36,123 INFO L93 Difference]: Finished difference Result 14596 states and 29855 transitions. [2022-09-16 10:42:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:42:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:36,146 INFO L225 Difference]: With dead ends: 14596 [2022-09-16 10:42:36,146 INFO L226 Difference]: Without dead ends: 14596 [2022-09-16 10:42:36,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1110, Invalid=4742, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:42:36,147 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1784 mSDsluCounter, 6745 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 7347 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:36,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 7347 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:42:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14596 states. [2022-09-16 10:42:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14596 to 7939. [2022-09-16 10:42:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:42:36,284 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:42:36,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:36,284 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:42:36,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:42:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:36,288 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:36,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:36,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-09-16 10:42:36,288 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1624849009, now seen corresponding path program 19 times [2022-09-16 10:42:36,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:36,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212351138] [2022-09-16 10:42:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:36,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:36,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212351138] [2022-09-16 10:42:36,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212351138] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:36,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:36,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:42:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122796967] [2022-09-16 10:42:36,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:36,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:42:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:36,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:42:36,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:42:36,683 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:39,082 INFO L93 Difference]: Finished difference Result 12409 states and 25413 transitions. [2022-09-16 10:42:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:42:39,083 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:39,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:39,101 INFO L225 Difference]: With dead ends: 12409 [2022-09-16 10:42:39,101 INFO L226 Difference]: Without dead ends: 12409 [2022-09-16 10:42:39,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=698, Invalid=2962, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:42:39,102 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1549 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 5405 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:39,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 5405 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:42:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12409 states. [2022-09-16 10:42:39,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12409 to 8535. [2022-09-16 10:42:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8529 states have (on average 2.049361003634658) internal successors, (17479), 8534 states have internal predecessors, (17479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 17479 transitions. [2022-09-16 10:42:39,226 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 17479 transitions. Word has length 96 [2022-09-16 10:42:39,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:39,226 INFO L495 AbstractCegarLoop]: Abstraction has 8535 states and 17479 transitions. [2022-09-16 10:42:39,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 17479 transitions. [2022-09-16 10:42:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:39,232 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:39,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:39,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-09-16 10:42:39,232 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash 567229753, now seen corresponding path program 20 times [2022-09-16 10:42:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:39,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092016107] [2022-09-16 10:42:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:39,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:39,865 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 10:42:39,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092016107] [2022-09-16 10:42:39,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092016107] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:39,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:39,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214611219] [2022-09-16 10:42:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:39,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:39,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:39,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:39,867 INFO L87 Difference]: Start difference. First operand 8535 states and 17479 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:44,154 INFO L93 Difference]: Finished difference Result 13701 states and 28017 transitions. [2022-09-16 10:42:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:42:44,154 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:44,171 INFO L225 Difference]: With dead ends: 13701 [2022-09-16 10:42:44,171 INFO L226 Difference]: Without dead ends: 13701 [2022-09-16 10:42:44,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1171, Invalid=4991, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:42:44,172 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 2138 mSDsluCounter, 5556 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 6023 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:44,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 6023 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:42:44,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13701 states. [2022-09-16 10:42:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13701 to 8535. [2022-09-16 10:42:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8529 states have (on average 2.049361003634658) internal successors, (17479), 8534 states have internal predecessors, (17479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 17479 transitions. [2022-09-16 10:42:44,284 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 17479 transitions. Word has length 96 [2022-09-16 10:42:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:44,284 INFO L495 AbstractCegarLoop]: Abstraction has 8535 states and 17479 transitions. [2022-09-16 10:42:44,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 17479 transitions. [2022-09-16 10:42:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:44,288 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:44,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:44,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-09-16 10:42:44,289 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:44,289 INFO L85 PathProgramCache]: Analyzing trace with hash 309277817, now seen corresponding path program 21 times [2022-09-16 10:42:44,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:44,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344287991] [2022-09-16 10:42:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:44,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:44,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:44,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:44,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344287991] [2022-09-16 10:42:44,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344287991] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:44,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:44,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598351486] [2022-09-16 10:42:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:44,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:44,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:44,874 INFO L87 Difference]: Start difference. First operand 8535 states and 17479 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:49,172 INFO L93 Difference]: Finished difference Result 14809 states and 30302 transitions. [2022-09-16 10:42:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:42:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:49,191 INFO L225 Difference]: With dead ends: 14809 [2022-09-16 10:42:49,192 INFO L226 Difference]: Without dead ends: 14809 [2022-09-16 10:42:49,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1388 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1172, Invalid=4990, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:42:49,193 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 2071 mSDsluCounter, 6452 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:49,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 6936 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:42:49,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14809 states. [2022-09-16 10:42:49,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 8535. [2022-09-16 10:42:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8529 states have (on average 2.049361003634658) internal successors, (17479), 8534 states have internal predecessors, (17479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 17479 transitions. [2022-09-16 10:42:49,320 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 17479 transitions. Word has length 96 [2022-09-16 10:42:49,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:49,320 INFO L495 AbstractCegarLoop]: Abstraction has 8535 states and 17479 transitions. [2022-09-16 10:42:49,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 17479 transitions. [2022-09-16 10:42:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:49,324 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:49,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:49,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-09-16 10:42:49,325 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:49,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1489726505, now seen corresponding path program 22 times [2022-09-16 10:42:49,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:49,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266834976] [2022-09-16 10:42:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:49,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:42:49,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:49,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266834976] [2022-09-16 10:42:49,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266834976] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:49,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:49,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:49,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400195395] [2022-09-16 10:42:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:49,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:49,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:49,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:49,889 INFO L87 Difference]: Start difference. First operand 8535 states and 17479 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:54,141 INFO L93 Difference]: Finished difference Result 13892 states and 28409 transitions. [2022-09-16 10:42:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:42:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:54,159 INFO L225 Difference]: With dead ends: 13892 [2022-09-16 10:42:54,159 INFO L226 Difference]: Without dead ends: 13892 [2022-09-16 10:42:54,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1111, Invalid=4741, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:42:54,160 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1673 mSDsluCounter, 8166 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 8760 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:54,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 8760 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:42:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13892 states. [2022-09-16 10:42:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13892 to 7939. [2022-09-16 10:42:54,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7933 states have (on average 2.050044119500819) internal successors, (16263), 7938 states have internal predecessors, (16263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 16263 transitions. [2022-09-16 10:42:54,278 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 16263 transitions. Word has length 96 [2022-09-16 10:42:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:54,278 INFO L495 AbstractCegarLoop]: Abstraction has 7939 states and 16263 transitions. [2022-09-16 10:42:54,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 16263 transitions. [2022-09-16 10:42:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:54,281 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:54,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:54,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-09-16 10:42:54,281 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:54,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1934429661, now seen corresponding path program 23 times [2022-09-16 10:42:54,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:54,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664012679] [2022-09-16 10:42:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:54,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:54,743 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 10:42:54,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:54,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664012679] [2022-09-16 10:42:54,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664012679] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:54,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:54,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:42:54,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253636403] [2022-09-16 10:42:54,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:54,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:42:54,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:42:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:42:54,745 INFO L87 Difference]: Start difference. First operand 7939 states and 16263 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:57,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:57,105 INFO L93 Difference]: Finished difference Result 12352 states and 25299 transitions. [2022-09-16 10:42:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:42:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:42:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:57,122 INFO L225 Difference]: With dead ends: 12352 [2022-09-16 10:42:57,122 INFO L226 Difference]: Without dead ends: 12352 [2022-09-16 10:42:57,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=693, Invalid=2967, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:42:57,123 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1794 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 5107 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:57,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 5107 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:42:57,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12352 states. [2022-09-16 10:42:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12352 to 8478. [2022-09-16 10:42:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 8472 states have (on average 2.049693106704438) internal successors, (17365), 8477 states have internal predecessors, (17365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 17365 transitions. [2022-09-16 10:42:57,276 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 17365 transitions. Word has length 96 [2022-09-16 10:42:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:57,276 INFO L495 AbstractCegarLoop]: Abstraction has 8478 states and 17365 transitions. [2022-09-16 10:42:57,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 17365 transitions. [2022-09-16 10:42:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:42:57,280 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:57,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:57,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-09-16 10:42:57,280 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:42:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1302918379, now seen corresponding path program 24 times [2022-09-16 10:42:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334916949] [2022-09-16 10:42:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:57,947 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 10:42:57,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334916949] [2022-09-16 10:42:57,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334916949] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:57,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:57,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:42:57,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182299950] [2022-09-16 10:42:57,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:57,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:42:57,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:57,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:42:57,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:42:57,949 INFO L87 Difference]: Start difference. First operand 8478 states and 17365 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:02,216 INFO L93 Difference]: Finished difference Result 13419 states and 27444 transitions. [2022-09-16 10:43:02,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:43:02,217 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:02,237 INFO L225 Difference]: With dead ends: 13419 [2022-09-16 10:43:02,237 INFO L226 Difference]: Without dead ends: 13419 [2022-09-16 10:43:02,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1169, Invalid=4993, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:43:02,238 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 2407 mSDsluCounter, 5309 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 5767 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:02,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2407 Valid, 5767 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:02,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13419 states. [2022-09-16 10:43:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13419 to 8442. [2022-09-16 10:43:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8442 states, 8436 states have (on average 2.049905168326221) internal successors, (17293), 8441 states have internal predecessors, (17293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8442 states to 8442 states and 17293 transitions. [2022-09-16 10:43:02,402 INFO L78 Accepts]: Start accepts. Automaton has 8442 states and 17293 transitions. Word has length 96 [2022-09-16 10:43:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:02,402 INFO L495 AbstractCegarLoop]: Abstraction has 8442 states and 17293 transitions. [2022-09-16 10:43:02,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 8442 states and 17293 transitions. [2022-09-16 10:43:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:02,406 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:02,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:02,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-09-16 10:43:02,406 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1044966443, now seen corresponding path program 25 times [2022-09-16 10:43:02,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:02,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730566458] [2022-09-16 10:43:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:02,989 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 10:43:02,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:02,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730566458] [2022-09-16 10:43:02,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730566458] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:02,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:02,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601494075] [2022-09-16 10:43:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:02,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:02,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:02,991 INFO L87 Difference]: Start difference. First operand 8442 states and 17293 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:07,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:07,698 INFO L93 Difference]: Finished difference Result 14833 states and 30353 transitions. [2022-09-16 10:43:07,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:43:07,699 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:07,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:07,719 INFO L225 Difference]: With dead ends: 14833 [2022-09-16 10:43:07,719 INFO L226 Difference]: Without dead ends: 14833 [2022-09-16 10:43:07,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1244, Invalid=5398, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:43:07,720 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2086 mSDsluCounter, 6681 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:07,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 7156 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:43:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14833 states. [2022-09-16 10:43:07,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14833 to 8442. [2022-09-16 10:43:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8442 states, 8436 states have (on average 2.049905168326221) internal successors, (17293), 8441 states have internal predecessors, (17293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8442 states to 8442 states and 17293 transitions. [2022-09-16 10:43:07,869 INFO L78 Accepts]: Start accepts. Automaton has 8442 states and 17293 transitions. Word has length 96 [2022-09-16 10:43:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:07,869 INFO L495 AbstractCegarLoop]: Abstraction has 8442 states and 17293 transitions. [2022-09-16 10:43:07,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8442 states and 17293 transitions. [2022-09-16 10:43:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:07,873 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:07,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:07,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-09-16 10:43:07,873 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -754037879, now seen corresponding path program 26 times [2022-09-16 10:43:07,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:07,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21086339] [2022-09-16 10:43:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:08,398 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 10:43:08,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:08,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21086339] [2022-09-16 10:43:08,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21086339] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:08,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:08,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:08,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938914834] [2022-09-16 10:43:08,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:08,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:08,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:08,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:08,400 INFO L87 Difference]: Start difference. First operand 8442 states and 17293 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:12,624 INFO L93 Difference]: Finished difference Result 13799 states and 28223 transitions. [2022-09-16 10:43:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:43:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:12,651 INFO L225 Difference]: With dead ends: 13799 [2022-09-16 10:43:12,651 INFO L226 Difference]: Without dead ends: 13799 [2022-09-16 10:43:12,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:43:12,653 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1916 mSDsluCounter, 7808 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:12,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 8393 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:43:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13799 states. [2022-09-16 10:43:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13799 to 7882. [2022-09-16 10:43:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7882 states, 7876 states have (on average 2.0504062976130015) internal successors, (16149), 7881 states have internal predecessors, (16149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7882 states to 7882 states and 16149 transitions. [2022-09-16 10:43:12,802 INFO L78 Accepts]: Start accepts. Automaton has 7882 states and 16149 transitions. Word has length 96 [2022-09-16 10:43:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:12,802 INFO L495 AbstractCegarLoop]: Abstraction has 7882 states and 16149 transitions. [2022-09-16 10:43:12,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7882 states and 16149 transitions. [2022-09-16 10:43:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:12,805 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:12,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:12,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-09-16 10:43:12,805 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:12,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1580522479, now seen corresponding path program 27 times [2022-09-16 10:43:12,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:12,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487412867] [2022-09-16 10:43:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:12,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:13,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:13,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487412867] [2022-09-16 10:43:13,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487412867] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:13,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:13,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:43:13,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868088763] [2022-09-16 10:43:13,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:13,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:43:13,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:13,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:43:13,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:43:13,208 INFO L87 Difference]: Start difference. First operand 7882 states and 16149 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:15,988 INFO L93 Difference]: Finished difference Result 13399 states and 27451 transitions. [2022-09-16 10:43:15,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-09-16 10:43:15,988 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:16,007 INFO L225 Difference]: With dead ends: 13399 [2022-09-16 10:43:16,007 INFO L226 Difference]: Without dead ends: 13399 [2022-09-16 10:43:16,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=798, Invalid=3362, Unknown=0, NotChecked=0, Total=4160 [2022-09-16 10:43:16,008 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1685 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 5482 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:16,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 5482 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:43:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13399 states. [2022-09-16 10:43:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13399 to 8390. [2022-09-16 10:43:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8390 states, 8384 states have (on average 2.0502146946564888) internal successors, (17189), 8389 states have internal predecessors, (17189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:16,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 17189 transitions. [2022-09-16 10:43:16,133 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 17189 transitions. Word has length 96 [2022-09-16 10:43:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:16,133 INFO L495 AbstractCegarLoop]: Abstraction has 8390 states and 17189 transitions. [2022-09-16 10:43:16,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 17189 transitions. [2022-09-16 10:43:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:16,138 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:16,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:16,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-09-16 10:43:16,138 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:16,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1656825561, now seen corresponding path program 28 times [2022-09-16 10:43:16,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:16,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215717450] [2022-09-16 10:43:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:16,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:16,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215717450] [2022-09-16 10:43:16,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215717450] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:16,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:16,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:16,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043170191] [2022-09-16 10:43:16,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:16,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:16,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:16,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:16,663 INFO L87 Difference]: Start difference. First operand 8390 states and 17189 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:20,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:20,974 INFO L93 Difference]: Finished difference Result 14325 states and 29314 transitions. [2022-09-16 10:43:20,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:43:20,974 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:20,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:20,993 INFO L225 Difference]: With dead ends: 14325 [2022-09-16 10:43:20,994 INFO L226 Difference]: Without dead ends: 14325 [2022-09-16 10:43:20,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1169, Invalid=4993, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:43:20,995 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 2131 mSDsluCounter, 5733 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:20,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 6210 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:43:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14325 states. [2022-09-16 10:43:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14325 to 8330. [2022-09-16 10:43:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8324 states have (on average 2.0505766458433445) internal successors, (17069), 8329 states have internal predecessors, (17069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 17069 transitions. [2022-09-16 10:43:21,117 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 17069 transitions. Word has length 96 [2022-09-16 10:43:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 8330 states and 17069 transitions. [2022-09-16 10:43:21,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 17069 transitions. [2022-09-16 10:43:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:21,121 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:21,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:21,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-09-16 10:43:21,121 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:21,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -142178761, now seen corresponding path program 29 times [2022-09-16 10:43:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:21,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805547765] [2022-09-16 10:43:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:21,723 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 10:43:21,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:21,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805547765] [2022-09-16 10:43:21,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805547765] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:21,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:21,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:21,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357449105] [2022-09-16 10:43:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:21,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:21,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:21,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:21,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:21,724 INFO L87 Difference]: Start difference. First operand 8330 states and 17069 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:26,286 INFO L93 Difference]: Finished difference Result 14747 states and 30177 transitions. [2022-09-16 10:43:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:43:26,287 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:26,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:26,307 INFO L225 Difference]: With dead ends: 14747 [2022-09-16 10:43:26,307 INFO L226 Difference]: Without dead ends: 14747 [2022-09-16 10:43:26,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:43:26,309 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1743 mSDsluCounter, 8572 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 9169 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:26,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 9169 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3021 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:43:26,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14747 states. [2022-09-16 10:43:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14747 to 7889. [2022-09-16 10:43:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7889 states, 7883 states have (on average 2.050361537485729) internal successors, (16163), 7888 states have internal predecessors, (16163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 16163 transitions. [2022-09-16 10:43:26,433 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 16163 transitions. Word has length 96 [2022-09-16 10:43:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:26,433 INFO L495 AbstractCegarLoop]: Abstraction has 7889 states and 16163 transitions. [2022-09-16 10:43:26,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 16163 transitions. [2022-09-16 10:43:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:26,437 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:26,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:26,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-09-16 10:43:26,437 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:26,437 INFO L85 PathProgramCache]: Analyzing trace with hash 280193531, now seen corresponding path program 30 times [2022-09-16 10:43:26,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:26,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641929388] [2022-09-16 10:43:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:26,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:26,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641929388] [2022-09-16 10:43:26,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641929388] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:26,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:26,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:43:26,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852974006] [2022-09-16 10:43:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:26,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:43:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:43:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:43:26,838 INFO L87 Difference]: Start difference. First operand 7889 states and 16163 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:30,671 INFO L93 Difference]: Finished difference Result 14440 states and 29610 transitions. [2022-09-16 10:43:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:43:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:30,690 INFO L225 Difference]: With dead ends: 14440 [2022-09-16 10:43:30,690 INFO L226 Difference]: Without dead ends: 14440 [2022-09-16 10:43:30,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1174, Invalid=4678, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:43:30,691 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 1962 mSDsluCounter, 5785 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 6321 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:30,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 6321 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14440 states. [2022-09-16 10:43:30,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14440 to 7908. [2022-09-16 10:43:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7908 states, 7902 states have (on average 2.0503669956972916) internal successors, (16202), 7907 states have internal predecessors, (16202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 16202 transitions. [2022-09-16 10:43:30,795 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 16202 transitions. Word has length 96 [2022-09-16 10:43:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:30,795 INFO L495 AbstractCegarLoop]: Abstraction has 7908 states and 16202 transitions. [2022-09-16 10:43:30,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 16202 transitions. [2022-09-16 10:43:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:30,798 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:30,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:30,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-09-16 10:43:30,799 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash -458458667, now seen corresponding path program 31 times [2022-09-16 10:43:30,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:30,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703601534] [2022-09-16 10:43:30,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:30,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:31,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:31,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703601534] [2022-09-16 10:43:31,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703601534] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:31,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:31,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:43:31,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138736357] [2022-09-16 10:43:31,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:31,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:43:31,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:31,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:43:31,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:43:31,215 INFO L87 Difference]: Start difference. First operand 7908 states and 16202 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:36,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:36,379 INFO L93 Difference]: Finished difference Result 15438 states and 31611 transitions. [2022-09-16 10:43:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-09-16 10:43:36,379 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:36,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:36,398 INFO L225 Difference]: With dead ends: 15438 [2022-09-16 10:43:36,399 INFO L226 Difference]: Without dead ends: 15438 [2022-09-16 10:43:36,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1676 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1430, Invalid=6052, Unknown=0, NotChecked=0, Total=7482 [2022-09-16 10:43:36,400 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1730 mSDsluCounter, 7507 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 8064 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:36,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 8064 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2798 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:43:36,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15438 states. [2022-09-16 10:43:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15438 to 8276. [2022-09-16 10:43:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8270 states have (on average 2.0510278113663847) internal successors, (16962), 8275 states have internal predecessors, (16962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 16962 transitions. [2022-09-16 10:43:36,522 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 16962 transitions. Word has length 96 [2022-09-16 10:43:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:36,522 INFO L495 AbstractCegarLoop]: Abstraction has 8276 states and 16962 transitions. [2022-09-16 10:43:36,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 16962 transitions. [2022-09-16 10:43:36,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:36,526 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:36,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:36,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-09-16 10:43:36,526 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:36,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 373137035, now seen corresponding path program 32 times [2022-09-16 10:43:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:36,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551051057] [2022-09-16 10:43:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:37,125 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 10:43:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:37,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551051057] [2022-09-16 10:43:37,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551051057] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:37,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:37,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:37,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853339397] [2022-09-16 10:43:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:37,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:37,126 INFO L87 Difference]: Start difference. First operand 8276 states and 16962 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:41,586 INFO L93 Difference]: Finished difference Result 14236 states and 29103 transitions. [2022-09-16 10:43:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:43:41,587 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:41,605 INFO L225 Difference]: With dead ends: 14236 [2022-09-16 10:43:41,606 INFO L226 Difference]: Without dead ends: 14236 [2022-09-16 10:43:41,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1179, Invalid=4983, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:43:41,607 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1898 mSDsluCounter, 7347 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 7894 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:41,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 7894 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:43:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14236 states. [2022-09-16 10:43:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14236 to 7891. [2022-09-16 10:43:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7891 states, 7885 states have (on average 2.0503487634749527) internal successors, (16167), 7890 states have internal predecessors, (16167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 16167 transitions. [2022-09-16 10:43:41,739 INFO L78 Accepts]: Start accepts. Automaton has 7891 states and 16167 transitions. Word has length 96 [2022-09-16 10:43:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:41,740 INFO L495 AbstractCegarLoop]: Abstraction has 7891 states and 16167 transitions. [2022-09-16 10:43:41,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7891 states and 16167 transitions. [2022-09-16 10:43:41,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:41,743 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:41,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:41,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-09-16 10:43:41,743 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:41,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:41,743 INFO L85 PathProgramCache]: Analyzing trace with hash 787345327, now seen corresponding path program 33 times [2022-09-16 10:43:41,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:41,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535733440] [2022-09-16 10:43:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:41,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:42,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:42,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:42,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535733440] [2022-09-16 10:43:42,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535733440] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:42,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:42,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:43:42,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798844545] [2022-09-16 10:43:42,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:42,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:43:42,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:42,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:43:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:43:42,235 INFO L87 Difference]: Start difference. First operand 7891 states and 16167 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:45,695 INFO L93 Difference]: Finished difference Result 13188 states and 27026 transitions. [2022-09-16 10:43:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-16 10:43:45,695 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:45,711 INFO L225 Difference]: With dead ends: 13188 [2022-09-16 10:43:45,711 INFO L226 Difference]: Without dead ends: 13188 [2022-09-16 10:43:45,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=912, Invalid=3780, Unknown=0, NotChecked=0, Total=4692 [2022-09-16 10:43:45,712 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1724 mSDsluCounter, 5702 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 6167 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:45,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 6167 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2022-09-16 10:43:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 8297. [2022-09-16 10:43:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 8291 states have (on average 2.05077795199614) internal successors, (17003), 8296 states have internal predecessors, (17003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 17003 transitions. [2022-09-16 10:43:45,820 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 17003 transitions. Word has length 96 [2022-09-16 10:43:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:45,820 INFO L495 AbstractCegarLoop]: Abstraction has 8297 states and 17003 transitions. [2022-09-16 10:43:45,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 17003 transitions. [2022-09-16 10:43:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:45,824 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:45,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:45,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-09-16 10:43:45,824 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:45,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1618941029, now seen corresponding path program 34 times [2022-09-16 10:43:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:45,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322826722] [2022-09-16 10:43:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:46,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322826722] [2022-09-16 10:43:46,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322826722] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:46,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:46,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91743226] [2022-09-16 10:43:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:46,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:46,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:46,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:46,417 INFO L87 Difference]: Start difference. First operand 8297 states and 17003 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:50,940 INFO L93 Difference]: Finished difference Result 13905 states and 28451 transitions. [2022-09-16 10:43:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:43:50,941 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:50,960 INFO L225 Difference]: With dead ends: 13905 [2022-09-16 10:43:50,960 INFO L226 Difference]: Without dead ends: 13905 [2022-09-16 10:43:50,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1275, Invalid=5367, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:43:50,961 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 2095 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 7403 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:50,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 7403 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:43:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13905 states. [2022-09-16 10:43:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13905 to 7884. [2022-09-16 10:43:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:43:51,097 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:43:51,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:51,097 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:43:51,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:43:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:51,101 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:51,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:51,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-09-16 10:43:51,101 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1589615915, now seen corresponding path program 35 times [2022-09-16 10:43:51,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:51,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351107016] [2022-09-16 10:43:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:51,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:43:51,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:51,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351107016] [2022-09-16 10:43:51,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351107016] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:51,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:51,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:43:51,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453506019] [2022-09-16 10:43:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:43:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:43:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:43:51,580 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:54,421 INFO L93 Difference]: Finished difference Result 13513 states and 27679 transitions. [2022-09-16 10:43:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:43:54,422 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:54,441 INFO L225 Difference]: With dead ends: 13513 [2022-09-16 10:43:54,441 INFO L226 Difference]: Without dead ends: 13513 [2022-09-16 10:43:54,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=771, Invalid=3261, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:43:54,442 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1666 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 6163 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:54,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 6163 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:43:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13513 states. [2022-09-16 10:43:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13513 to 8404. [2022-09-16 10:43:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 8398 states have (on average 2.050130983567516) internal successors, (17217), 8403 states have internal predecessors, (17217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 17217 transitions. [2022-09-16 10:43:54,591 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 17217 transitions. Word has length 96 [2022-09-16 10:43:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:54,591 INFO L495 AbstractCegarLoop]: Abstraction has 8404 states and 17217 transitions. [2022-09-16 10:43:54,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 17217 transitions. [2022-09-16 10:43:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:54,595 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:54,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:54,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-09-16 10:43:54,595 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:54,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:54,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1647732125, now seen corresponding path program 36 times [2022-09-16 10:43:54,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:54,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671571470] [2022-09-16 10:43:54,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:43:55,223 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 10:43:55,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:43:55,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671571470] [2022-09-16 10:43:55,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671571470] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:43:55,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:43:55,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:43:55,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087305687] [2022-09-16 10:43:55,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:43:55,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:43:55,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:43:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:43:55,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:43:55,224 INFO L87 Difference]: Start difference. First operand 8404 states and 17217 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:43:59,468 INFO L93 Difference]: Finished difference Result 14625 states and 29923 transitions. [2022-09-16 10:43:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:43:59,468 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:43:59,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:43:59,489 INFO L225 Difference]: With dead ends: 14625 [2022-09-16 10:43:59,489 INFO L226 Difference]: Without dead ends: 14625 [2022-09-16 10:43:59,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:43:59,490 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2191 mSDsluCounter, 5395 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:43:59,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 5890 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:43:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2022-09-16 10:43:59,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 8404. [2022-09-16 10:43:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 8398 states have (on average 2.050130983567516) internal successors, (17217), 8403 states have internal predecessors, (17217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 17217 transitions. [2022-09-16 10:43:59,633 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 17217 transitions. Word has length 96 [2022-09-16 10:43:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:43:59,633 INFO L495 AbstractCegarLoop]: Abstraction has 8404 states and 17217 transitions. [2022-09-16 10:43:59,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:43:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 17217 transitions. [2022-09-16 10:43:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:43:59,636 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:43:59,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:43:59,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-09-16 10:43:59,637 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:43:59,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:43:59,637 INFO L85 PathProgramCache]: Analyzing trace with hash -151272197, now seen corresponding path program 37 times [2022-09-16 10:43:59,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:43:59,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067656281] [2022-09-16 10:43:59,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:43:59,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:43:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:00,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067656281] [2022-09-16 10:44:00,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067656281] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:00,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:00,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660255319] [2022-09-16 10:44:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:00,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:00,147 INFO L87 Difference]: Start difference. First operand 8404 states and 17217 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:04,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:04,586 INFO L93 Difference]: Finished difference Result 14921 states and 30525 transitions. [2022-09-16 10:44:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:44:04,587 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:04,616 INFO L225 Difference]: With dead ends: 14921 [2022-09-16 10:44:04,616 INFO L226 Difference]: Without dead ends: 14921 [2022-09-16 10:44:04,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:44:04,617 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 1842 mSDsluCounter, 9020 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 9635 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:04,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 9635 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:44:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14921 states. [2022-09-16 10:44:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14921 to 7883. [2022-09-16 10:44:04,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7883 states, 7877 states have (on average 2.0503998984384917) internal successors, (16151), 7882 states have internal predecessors, (16151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:04,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7883 states to 7883 states and 16151 transitions. [2022-09-16 10:44:04,762 INFO L78 Accepts]: Start accepts. Automaton has 7883 states and 16151 transitions. Word has length 96 [2022-09-16 10:44:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:04,763 INFO L495 AbstractCegarLoop]: Abstraction has 7883 states and 16151 transitions. [2022-09-16 10:44:04,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:04,763 INFO L276 IsEmpty]: Start isEmpty. Operand 7883 states and 16151 transitions. [2022-09-16 10:44:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:04,766 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:04,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:04,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-09-16 10:44:04,766 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:04,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:04,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1424932221, now seen corresponding path program 38 times [2022-09-16 10:44:04,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:04,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968783154] [2022-09-16 10:44:04,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:04,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:05,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:05,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968783154] [2022-09-16 10:44:05,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968783154] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:05,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:05,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:05,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577496492] [2022-09-16 10:44:05,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:05,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:05,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:05,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:05,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:05,153 INFO L87 Difference]: Start difference. First operand 7883 states and 16151 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:07,780 INFO L93 Difference]: Finished difference Result 13152 states and 26938 transitions. [2022-09-16 10:44:07,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:44:07,780 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:07,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:07,801 INFO L225 Difference]: With dead ends: 13152 [2022-09-16 10:44:07,801 INFO L226 Difference]: Without dead ends: 13152 [2022-09-16 10:44:07,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=745, Invalid=3161, Unknown=0, NotChecked=0, Total=3906 [2022-09-16 10:44:07,802 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 1596 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 6808 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:07,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 6808 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:44:07,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13152 states. [2022-09-16 10:44:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13152 to 8422. [2022-09-16 10:44:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8422 states, 8416 states have (on average 2.050023764258555) internal successors, (17253), 8421 states have internal predecessors, (17253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 17253 transitions. [2022-09-16 10:44:07,935 INFO L78 Accepts]: Start accepts. Automaton has 8422 states and 17253 transitions. Word has length 96 [2022-09-16 10:44:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:07,935 INFO L495 AbstractCegarLoop]: Abstraction has 8422 states and 17253 transitions. [2022-09-16 10:44:07,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8422 states and 17253 transitions. [2022-09-16 10:44:07,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:07,939 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:07,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:07,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-09-16 10:44:07,939 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:07,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:07,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1812415819, now seen corresponding path program 39 times [2022-09-16 10:44:07,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:07,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398917007] [2022-09-16 10:44:07,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:07,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:08,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:08,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398917007] [2022-09-16 10:44:08,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398917007] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:08,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:08,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:08,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535236407] [2022-09-16 10:44:08,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:08,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:08,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:08,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:08,552 INFO L87 Difference]: Start difference. First operand 8422 states and 17253 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:13,042 INFO L93 Difference]: Finished difference Result 14264 states and 29182 transitions. [2022-09-16 10:44:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:44:13,042 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:13,067 INFO L225 Difference]: With dead ends: 14264 [2022-09-16 10:44:13,067 INFO L226 Difference]: Without dead ends: 14264 [2022-09-16 10:44:13,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:44:13,069 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1977 mSDsluCounter, 7316 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:13,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 7813 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:44:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14264 states. [2022-09-16 10:44:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14264 to 8422. [2022-09-16 10:44:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8422 states, 8416 states have (on average 2.050023764258555) internal successors, (17253), 8421 states have internal predecessors, (17253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 17253 transitions. [2022-09-16 10:44:13,216 INFO L78 Accepts]: Start accepts. Automaton has 8422 states and 17253 transitions. Word has length 96 [2022-09-16 10:44:13,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:13,216 INFO L495 AbstractCegarLoop]: Abstraction has 8422 states and 17253 transitions. [2022-09-16 10:44:13,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8422 states and 17253 transitions. [2022-09-16 10:44:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:13,220 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:13,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:13,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-09-16 10:44:13,221 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:13,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash 13411497, now seen corresponding path program 40 times [2022-09-16 10:44:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149164405] [2022-09-16 10:44:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:13,725 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 10:44:13,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:13,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149164405] [2022-09-16 10:44:13,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149164405] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:13,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:13,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:13,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817359661] [2022-09-16 10:44:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:13,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:13,727 INFO L87 Difference]: Start difference. First operand 8422 states and 17253 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:18,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:18,177 INFO L93 Difference]: Finished difference Result 14677 states and 30021 transitions. [2022-09-16 10:44:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:44:18,177 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:18,195 INFO L225 Difference]: With dead ends: 14677 [2022-09-16 10:44:18,195 INFO L226 Difference]: Without dead ends: 14677 [2022-09-16 10:44:18,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1181, Invalid=5139, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:44:18,196 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 1769 mSDsluCounter, 8017 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 8634 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:18,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 8634 Invalid, 2654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:44:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14677 states. [2022-09-16 10:44:18,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14677 to 7879. [2022-09-16 10:44:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7879 states, 7873 states have (on average 2.0504255048901308) internal successors, (16143), 7878 states have internal predecessors, (16143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:18,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7879 states to 7879 states and 16143 transitions. [2022-09-16 10:44:18,296 INFO L78 Accepts]: Start accepts. Automaton has 7879 states and 16143 transitions. Word has length 96 [2022-09-16 10:44:18,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:18,296 INFO L495 AbstractCegarLoop]: Abstraction has 7879 states and 16143 transitions. [2022-09-16 10:44:18,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7879 states and 16143 transitions. [2022-09-16 10:44:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:18,299 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:18,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:18,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-09-16 10:44:18,299 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1455166237, now seen corresponding path program 41 times [2022-09-16 10:44:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:18,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087437867] [2022-09-16 10:44:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:18,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:18,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:18,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087437867] [2022-09-16 10:44:18,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087437867] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:18,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:18,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:18,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805184810] [2022-09-16 10:44:18,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:18,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:18,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:18,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:18,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:18,737 INFO L87 Difference]: Start difference. First operand 7879 states and 16143 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:21,186 INFO L93 Difference]: Finished difference Result 12539 states and 25693 transitions. [2022-09-16 10:44:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:44:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:21,203 INFO L225 Difference]: With dead ends: 12539 [2022-09-16 10:44:21,203 INFO L226 Difference]: Without dead ends: 12539 [2022-09-16 10:44:21,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=684, Invalid=2976, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:44:21,203 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 1581 mSDsluCounter, 4978 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 5407 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:21,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 5407 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 10:44:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12539 states. [2022-09-16 10:44:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12539 to 8385. [2022-09-16 10:44:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8385 states, 8379 states have (on average 2.0502446592672157) internal successors, (17179), 8384 states have internal predecessors, (17179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8385 states to 8385 states and 17179 transitions. [2022-09-16 10:44:21,310 INFO L78 Accepts]: Start accepts. Automaton has 8385 states and 17179 transitions. Word has length 96 [2022-09-16 10:44:21,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:21,310 INFO L495 AbstractCegarLoop]: Abstraction has 8385 states and 17179 transitions. [2022-09-16 10:44:21,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 8385 states and 17179 transitions. [2022-09-16 10:44:21,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:21,314 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:21,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:21,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-09-16 10:44:21,314 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:21,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1782181803, now seen corresponding path program 42 times [2022-09-16 10:44:21,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:21,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989474997] [2022-09-16 10:44:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:21,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:21,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:21,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989474997] [2022-09-16 10:44:21,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989474997] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:21,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:21,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220049160] [2022-09-16 10:44:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:21,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:21,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:21,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:21,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:21,865 INFO L87 Difference]: Start difference. First operand 8385 states and 17179 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:26,593 INFO L93 Difference]: Finished difference Result 13582 states and 27793 transitions. [2022-09-16 10:44:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:44:26,593 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:26,608 INFO L225 Difference]: With dead ends: 13582 [2022-09-16 10:44:26,608 INFO L226 Difference]: Without dead ends: 13582 [2022-09-16 10:44:26,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1243, Invalid=5399, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:44:26,609 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1979 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 2731 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:26,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 7225 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2731 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:44:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13582 states. [2022-09-16 10:44:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13582 to 8325. [2022-09-16 10:44:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8325 states, 8319 states have (on average 2.0506070441158792) internal successors, (17059), 8324 states have internal predecessors, (17059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8325 states to 8325 states and 17059 transitions. [2022-09-16 10:44:26,711 INFO L78 Accepts]: Start accepts. Automaton has 8325 states and 17059 transitions. Word has length 96 [2022-09-16 10:44:26,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:26,712 INFO L495 AbstractCegarLoop]: Abstraction has 8325 states and 17059 transitions. [2022-09-16 10:44:26,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 8325 states and 17059 transitions. [2022-09-16 10:44:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:26,715 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:26,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:26,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-09-16 10:44:26,715 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:26,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:26,716 INFO L85 PathProgramCache]: Analyzing trace with hash -16822519, now seen corresponding path program 43 times [2022-09-16 10:44:26,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:26,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55332765] [2022-09-16 10:44:26,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:26,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:27,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:27,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55332765] [2022-09-16 10:44:27,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55332765] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:27,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:27,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:27,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556069064] [2022-09-16 10:44:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:27,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:27,301 INFO L87 Difference]: Start difference. First operand 8325 states and 17059 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:31,325 INFO L93 Difference]: Finished difference Result 14004 states and 28656 transitions. [2022-09-16 10:44:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:44:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:31,341 INFO L225 Difference]: With dead ends: 14004 [2022-09-16 10:44:31,341 INFO L226 Difference]: Without dead ends: 14004 [2022-09-16 10:44:31,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1009, Invalid=4393, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:44:31,341 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1735 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 7345 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:31,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 7345 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:44:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14004 states. [2022-09-16 10:44:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14004 to 7884. [2022-09-16 10:44:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:44:31,441 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:44:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:31,441 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:44:31,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:44:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:31,444 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:31,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:31,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-09-16 10:44:31,444 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash 405549773, now seen corresponding path program 44 times [2022-09-16 10:44:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:31,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769208780] [2022-09-16 10:44:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:31,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:31,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:31,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769208780] [2022-09-16 10:44:31,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769208780] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:31,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:31,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:31,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897322700] [2022-09-16 10:44:31,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:31,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:31,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:31,872 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:36,201 INFO L93 Difference]: Finished difference Result 14487 states and 29724 transitions. [2022-09-16 10:44:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-09-16 10:44:36,201 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:36,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:36,220 INFO L225 Difference]: With dead ends: 14487 [2022-09-16 10:44:36,221 INFO L226 Difference]: Without dead ends: 14487 [2022-09-16 10:44:36,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1264, Invalid=5056, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:44:36,221 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1912 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 7097 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:36,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 7097 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:44:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14487 states. [2022-09-16 10:44:36,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14487 to 7903. [2022-09-16 10:44:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7903 states, 7897 states have (on average 2.0503988856527795) internal successors, (16192), 7902 states have internal predecessors, (16192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7903 states to 7903 states and 16192 transitions. [2022-09-16 10:44:36,330 INFO L78 Accepts]: Start accepts. Automaton has 7903 states and 16192 transitions. Word has length 96 [2022-09-16 10:44:36,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:36,331 INFO L495 AbstractCegarLoop]: Abstraction has 7903 states and 16192 transitions. [2022-09-16 10:44:36,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7903 states and 16192 transitions. [2022-09-16 10:44:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:36,334 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:36,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:36,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-09-16 10:44:36,334 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:36,334 INFO L85 PathProgramCache]: Analyzing trace with hash -333102425, now seen corresponding path program 45 times [2022-09-16 10:44:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:36,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116942385] [2022-09-16 10:44:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:36,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:36,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:36,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:36,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116942385] [2022-09-16 10:44:36,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116942385] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:36,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:36,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:36,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711352173] [2022-09-16 10:44:36,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:36,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:36,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:36,763 INFO L87 Difference]: Start difference. First operand 7903 states and 16192 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:41,621 INFO L93 Difference]: Finished difference Result 15485 states and 31725 transitions. [2022-09-16 10:44:41,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-09-16 10:44:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:41,640 INFO L225 Difference]: With dead ends: 15485 [2022-09-16 10:44:41,640 INFO L226 Difference]: Without dead ends: 15485 [2022-09-16 10:44:41,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1536 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1343, Invalid=5629, Unknown=0, NotChecked=0, Total=6972 [2022-09-16 10:44:41,641 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 1720 mSDsluCounter, 7332 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 7884 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:41,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 7884 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:44:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15485 states. [2022-09-16 10:44:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15485 to 8271. [2022-09-16 10:44:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8271 states, 8265 states have (on average 2.0510586811857228) internal successors, (16952), 8270 states have internal predecessors, (16952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8271 states to 8271 states and 16952 transitions. [2022-09-16 10:44:41,756 INFO L78 Accepts]: Start accepts. Automaton has 8271 states and 16952 transitions. Word has length 96 [2022-09-16 10:44:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:41,756 INFO L495 AbstractCegarLoop]: Abstraction has 8271 states and 16952 transitions. [2022-09-16 10:44:41,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 8271 states and 16952 transitions. [2022-09-16 10:44:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:41,760 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:41,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:41,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-09-16 10:44:41,760 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash 498493277, now seen corresponding path program 46 times [2022-09-16 10:44:41,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718983241] [2022-09-16 10:44:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:41,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:42,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:42,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718983241] [2022-09-16 10:44:42,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718983241] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:42,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:42,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:42,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951846907] [2022-09-16 10:44:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:42,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:42,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:42,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:42,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:42,270 INFO L87 Difference]: Start difference. First operand 8271 states and 16952 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:46,459 INFO L93 Difference]: Finished difference Result 14205 states and 29058 transitions. [2022-09-16 10:44:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:44:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:46,474 INFO L225 Difference]: With dead ends: 14205 [2022-09-16 10:44:46,474 INFO L226 Difference]: Without dead ends: 14205 [2022-09-16 10:44:46,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1132, Invalid=4720, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:44:46,475 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1975 mSDsluCounter, 6459 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 7001 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:46,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 7001 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:44:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14205 states. [2022-09-16 10:44:46,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14205 to 7886. [2022-09-16 10:44:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7886 states, 7880 states have (on average 2.0503807106598986) internal successors, (16157), 7885 states have internal predecessors, (16157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7886 states to 7886 states and 16157 transitions. [2022-09-16 10:44:46,574 INFO L78 Accepts]: Start accepts. Automaton has 7886 states and 16157 transitions. Word has length 96 [2022-09-16 10:44:46,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:46,574 INFO L495 AbstractCegarLoop]: Abstraction has 7886 states and 16157 transitions. [2022-09-16 10:44:46,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7886 states and 16157 transitions. [2022-09-16 10:44:46,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:46,577 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:46,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:46,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-09-16 10:44:46,577 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 912701569, now seen corresponding path program 47 times [2022-09-16 10:44:46,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:46,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639768236] [2022-09-16 10:44:46,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:46,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:46,976 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 10:44:46,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:46,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639768236] [2022-09-16 10:44:46,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639768236] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:46,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:46,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:46,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787721573] [2022-09-16 10:44:46,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:46,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:46,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:46,978 INFO L87 Difference]: Start difference. First operand 7886 states and 16157 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:50,098 INFO L93 Difference]: Finished difference Result 12969 states and 26589 transitions. [2022-09-16 10:44:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-16 10:44:50,098 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:50,115 INFO L225 Difference]: With dead ends: 12969 [2022-09-16 10:44:50,115 INFO L226 Difference]: Without dead ends: 12969 [2022-09-16 10:44:50,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=828, Invalid=3462, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:44:50,116 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1649 mSDsluCounter, 5712 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 6172 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:50,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 6172 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:44:50,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12969 states. [2022-09-16 10:44:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12969 to 8292. [2022-09-16 10:44:50,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8292 states, 8286 states have (on average 2.0508085928071447) internal successors, (16993), 8291 states have internal predecessors, (16993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8292 states to 8292 states and 16993 transitions. [2022-09-16 10:44:50,245 INFO L78 Accepts]: Start accepts. Automaton has 8292 states and 16993 transitions. Word has length 96 [2022-09-16 10:44:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:50,245 INFO L495 AbstractCegarLoop]: Abstraction has 8292 states and 16993 transitions. [2022-09-16 10:44:50,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:50,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8292 states and 16993 transitions. [2022-09-16 10:44:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:50,249 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:50,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:50,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-09-16 10:44:50,249 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:50,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1744297271, now seen corresponding path program 48 times [2022-09-16 10:44:50,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:50,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142011039] [2022-09-16 10:44:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:50,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:50,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:44:50,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:50,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142011039] [2022-09-16 10:44:50,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142011039] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:50,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:50,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:44:50,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750332778] [2022-09-16 10:44:50,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:50,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:44:50,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:50,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:44:50,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:44:50,787 INFO L87 Difference]: Start difference. First operand 8292 states and 16993 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:55,331 INFO L93 Difference]: Finished difference Result 13686 states and 28014 transitions. [2022-09-16 10:44:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:44:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:44:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:55,348 INFO L225 Difference]: With dead ends: 13686 [2022-09-16 10:44:55,348 INFO L226 Difference]: Without dead ends: 13686 [2022-09-16 10:44:55,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1275, Invalid=5367, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:44:55,349 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2003 mSDsluCounter, 7486 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 7992 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:55,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 7992 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:44:55,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13686 states. [2022-09-16 10:44:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13686 to 7879. [2022-09-16 10:44:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7879 states, 7873 states have (on average 2.0504255048901308) internal successors, (16143), 7878 states have internal predecessors, (16143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7879 states to 7879 states and 16143 transitions. [2022-09-16 10:44:55,473 INFO L78 Accepts]: Start accepts. Automaton has 7879 states and 16143 transitions. Word has length 96 [2022-09-16 10:44:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:55,473 INFO L495 AbstractCegarLoop]: Abstraction has 7879 states and 16143 transitions. [2022-09-16 10:44:55,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7879 states and 16143 transitions. [2022-09-16 10:44:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:44:55,476 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:55,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:55,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-09-16 10:44:55,476 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:44:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash 952729687, now seen corresponding path program 49 times [2022-09-16 10:44:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:55,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191346948] [2022-09-16 10:44:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:44:55,865 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 10:44:55,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:55,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191346948] [2022-09-16 10:44:55,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191346948] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:44:55,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:44:55,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:44:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656859318] [2022-09-16 10:44:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:44:55,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:44:55,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:55,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:44:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:44:55,867 INFO L87 Difference]: Start difference. First operand 7879 states and 16143 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:01,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:01,269 INFO L93 Difference]: Finished difference Result 13328 states and 27333 transitions. [2022-09-16 10:45:01,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-09-16 10:45:01,269 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:01,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:01,283 INFO L225 Difference]: With dead ends: 13328 [2022-09-16 10:45:01,283 INFO L226 Difference]: Without dead ends: 13328 [2022-09-16 10:45:01,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1467 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1534, Invalid=5948, Unknown=0, NotChecked=0, Total=7482 [2022-09-16 10:45:01,284 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 1724 mSDsluCounter, 8025 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:01,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 8558 Invalid, 3332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3302 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:45:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13328 states. [2022-09-16 10:45:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13328 to 7896. [2022-09-16 10:45:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7896 states, 7890 states have (on average 2.050443599493029) internal successors, (16178), 7895 states have internal predecessors, (16178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7896 states to 7896 states and 16178 transitions. [2022-09-16 10:45:01,386 INFO L78 Accepts]: Start accepts. Automaton has 7896 states and 16178 transitions. Word has length 96 [2022-09-16 10:45:01,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:01,386 INFO L495 AbstractCegarLoop]: Abstraction has 7896 states and 16178 transitions. [2022-09-16 10:45:01,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7896 states and 16178 transitions. [2022-09-16 10:45:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:01,389 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:01,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:01,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-09-16 10:45:01,389 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:01,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash 214077489, now seen corresponding path program 50 times [2022-09-16 10:45:01,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:01,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047400712] [2022-09-16 10:45:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:01,809 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 10:45:01,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:01,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047400712] [2022-09-16 10:45:01,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047400712] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:01,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:01,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:01,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014705428] [2022-09-16 10:45:01,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:01,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:01,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:01,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:01,811 INFO L87 Difference]: Start difference. First operand 7896 states and 16178 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:05,506 INFO L93 Difference]: Finished difference Result 13203 states and 27079 transitions. [2022-09-16 10:45:05,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:45:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:05,524 INFO L225 Difference]: With dead ends: 13203 [2022-09-16 10:45:05,524 INFO L226 Difference]: Without dead ends: 13203 [2022-09-16 10:45:05,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=951, Invalid=3879, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:45:05,525 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1934 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 6618 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:05,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 6618 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2022-09-16 10:45:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 8264. [2022-09-16 10:45:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8258 states have (on average 2.051101961734076) internal successors, (16938), 8263 states have internal predecessors, (16938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 16938 transitions. [2022-09-16 10:45:05,661 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 16938 transitions. Word has length 96 [2022-09-16 10:45:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:05,661 INFO L495 AbstractCegarLoop]: Abstraction has 8264 states and 16938 transitions. [2022-09-16 10:45:05,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 16938 transitions. [2022-09-16 10:45:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:05,665 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:05,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:05,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-09-16 10:45:05,665 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1045673191, now seen corresponding path program 51 times [2022-09-16 10:45:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:05,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612138628] [2022-09-16 10:45:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:06,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:06,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612138628] [2022-09-16 10:45:06,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612138628] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:06,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:06,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261530754] [2022-09-16 10:45:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:06,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:06,134 INFO L87 Difference]: Start difference. First operand 8264 states and 16938 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:10,426 INFO L93 Difference]: Finished difference Result 11792 states and 24138 transitions. [2022-09-16 10:45:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-16 10:45:10,427 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:10,440 INFO L225 Difference]: With dead ends: 11792 [2022-09-16 10:45:10,440 INFO L226 Difference]: Without dead ends: 11792 [2022-09-16 10:45:10,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1125, Invalid=4575, Unknown=0, NotChecked=0, Total=5700 [2022-09-16 10:45:10,441 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1866 mSDsluCounter, 7398 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 7911 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:10,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 7911 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:45:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11792 states. [2022-09-16 10:45:10,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11792 to 7879. [2022-09-16 10:45:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7879 states, 7873 states have (on average 2.0504255048901308) internal successors, (16143), 7878 states have internal predecessors, (16143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7879 states to 7879 states and 16143 transitions. [2022-09-16 10:45:10,569 INFO L78 Accepts]: Start accepts. Automaton has 7879 states and 16143 transitions. Word has length 96 [2022-09-16 10:45:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:10,569 INFO L495 AbstractCegarLoop]: Abstraction has 7879 states and 16143 transitions. [2022-09-16 10:45:10,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7879 states and 16143 transitions. [2022-09-16 10:45:10,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:10,572 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:10,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:10,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-09-16 10:45:10,573 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash -806199377, now seen corresponding path program 52 times [2022-09-16 10:45:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:10,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635234849] [2022-09-16 10:45:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:10,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:10,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:10,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635234849] [2022-09-16 10:45:10,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635234849] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:10,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:10,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:10,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141771341] [2022-09-16 10:45:10,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:10,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:10,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:10,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:10,981 INFO L87 Difference]: Start difference. First operand 7879 states and 16143 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:17,182 INFO L93 Difference]: Finished difference Result 14781 states and 30318 transitions. [2022-09-16 10:45:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-09-16 10:45:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:17,202 INFO L225 Difference]: With dead ends: 14781 [2022-09-16 10:45:17,202 INFO L226 Difference]: Without dead ends: 14781 [2022-09-16 10:45:17,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2549 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1968, Invalid=8334, Unknown=0, NotChecked=0, Total=10302 [2022-09-16 10:45:17,203 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2395 mSDsluCounter, 6946 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:17,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 7483 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:45:17,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14781 states. [2022-09-16 10:45:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14781 to 7889. [2022-09-16 10:45:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7889 states, 7883 states have (on average 2.050361537485729) internal successors, (16163), 7888 states have internal predecessors, (16163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 16163 transitions. [2022-09-16 10:45:17,318 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 16163 transitions. Word has length 96 [2022-09-16 10:45:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:17,319 INFO L495 AbstractCegarLoop]: Abstraction has 7889 states and 16163 transitions. [2022-09-16 10:45:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 16163 transitions. [2022-09-16 10:45:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:17,322 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:17,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:17,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-09-16 10:45:17,322 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1544851575, now seen corresponding path program 53 times [2022-09-16 10:45:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:17,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652688326] [2022-09-16 10:45:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:17,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:17,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652688326] [2022-09-16 10:45:17,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652688326] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:17,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:17,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:17,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281512309] [2022-09-16 10:45:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:17,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:17,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:17,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:17,813 INFO L87 Difference]: Start difference. First operand 7889 states and 16163 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:21,663 INFO L93 Difference]: Finished difference Result 13583 states and 27822 transitions. [2022-09-16 10:45:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:45:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:21,677 INFO L225 Difference]: With dead ends: 13583 [2022-09-16 10:45:21,677 INFO L226 Difference]: Without dead ends: 13583 [2022-09-16 10:45:21,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=987, Invalid=4125, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:45:21,677 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 2360 mSDsluCounter, 5965 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:21,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 6426 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:21,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13583 states. [2022-09-16 10:45:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13583 to 7999. [2022-09-16 10:45:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7999 states, 7993 states have (on average 2.0502940072563494) internal successors, (16388), 7998 states have internal predecessors, (16388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:21,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7999 states to 7999 states and 16388 transitions. [2022-09-16 10:45:21,766 INFO L78 Accepts]: Start accepts. Automaton has 7999 states and 16388 transitions. Word has length 96 [2022-09-16 10:45:21,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:21,766 INFO L495 AbstractCegarLoop]: Abstraction has 7999 states and 16388 transitions. [2022-09-16 10:45:21,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:21,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7999 states and 16388 transitions. [2022-09-16 10:45:21,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:21,769 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:21,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:21,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-09-16 10:45:21,769 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:21,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash -713255873, now seen corresponding path program 54 times [2022-09-16 10:45:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349405280] [2022-09-16 10:45:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:22,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:22,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349405280] [2022-09-16 10:45:22,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349405280] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:22,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:22,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:22,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048409361] [2022-09-16 10:45:22,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:22,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:22,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:22,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:22,253 INFO L87 Difference]: Start difference. First operand 7999 states and 16388 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:26,857 INFO L93 Difference]: Finished difference Result 12198 states and 24944 transitions. [2022-09-16 10:45:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:45:26,857 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:26,872 INFO L225 Difference]: With dead ends: 12198 [2022-09-16 10:45:26,873 INFO L226 Difference]: Without dead ends: 12198 [2022-09-16 10:45:26,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1247, Invalid=5073, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:45:26,873 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 2250 mSDsluCounter, 6615 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:26,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 7129 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:45:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12198 states. [2022-09-16 10:45:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12198 to 7884. [2022-09-16 10:45:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:45:26,980 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:45:26,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:26,980 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:45:26,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:45:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:26,983 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:26,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:26,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-09-16 10:45:26,983 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1424297439, now seen corresponding path program 55 times [2022-09-16 10:45:26,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:26,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098431986] [2022-09-16 10:45:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:27,386 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 10:45:27,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:27,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098431986] [2022-09-16 10:45:27,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098431986] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:27,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:27,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:27,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821445794] [2022-09-16 10:45:27,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:27,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:27,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:27,388 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:31,704 INFO L93 Difference]: Finished difference Result 12943 states and 26548 transitions. [2022-09-16 10:45:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-09-16 10:45:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:31,721 INFO L225 Difference]: With dead ends: 12943 [2022-09-16 10:45:31,721 INFO L226 Difference]: Without dead ends: 12943 [2022-09-16 10:45:31,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1294, Invalid=5186, Unknown=0, NotChecked=0, Total=6480 [2022-09-16 10:45:31,722 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 1873 mSDsluCounter, 6415 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 6892 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:31,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 6892 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2610 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:45:31,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12943 states. [2022-09-16 10:45:31,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12943 to 7903. [2022-09-16 10:45:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7903 states, 7897 states have (on average 2.0503988856527795) internal successors, (16192), 7902 states have internal predecessors, (16192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7903 states to 7903 states and 16192 transitions. [2022-09-16 10:45:31,844 INFO L78 Accepts]: Start accepts. Automaton has 7903 states and 16192 transitions. Word has length 96 [2022-09-16 10:45:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:31,844 INFO L495 AbstractCegarLoop]: Abstraction has 7903 states and 16192 transitions. [2022-09-16 10:45:31,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7903 states and 16192 transitions. [2022-09-16 10:45:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:31,847 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:31,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:31,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-09-16 10:45:31,848 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:31,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:31,848 INFO L85 PathProgramCache]: Analyzing trace with hash 685645241, now seen corresponding path program 56 times [2022-09-16 10:45:31,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:31,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779807389] [2022-09-16 10:45:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:31,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:32,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779807389] [2022-09-16 10:45:32,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779807389] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:32,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:32,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479341352] [2022-09-16 10:45:32,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:32,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:32,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:32,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:32,301 INFO L87 Difference]: Start difference. First operand 7903 states and 16192 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:36,738 INFO L93 Difference]: Finished difference Result 14435 states and 29588 transitions. [2022-09-16 10:45:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-09-16 10:45:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:36,758 INFO L225 Difference]: With dead ends: 14435 [2022-09-16 10:45:36,758 INFO L226 Difference]: Without dead ends: 14435 [2022-09-16 10:45:36,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1494 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1312, Invalid=5494, Unknown=0, NotChecked=0, Total=6806 [2022-09-16 10:45:36,760 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 2255 mSDsluCounter, 5580 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 6037 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:36,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2255 Valid, 6037 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2022-09-16 10:45:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 8271. [2022-09-16 10:45:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8271 states, 8265 states have (on average 2.0510586811857228) internal successors, (16952), 8270 states have internal predecessors, (16952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:36,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8271 states to 8271 states and 16952 transitions. [2022-09-16 10:45:36,907 INFO L78 Accepts]: Start accepts. Automaton has 8271 states and 16952 transitions. Word has length 96 [2022-09-16 10:45:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:36,908 INFO L495 AbstractCegarLoop]: Abstraction has 8271 states and 16952 transitions. [2022-09-16 10:45:36,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8271 states and 16952 transitions. [2022-09-16 10:45:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:36,911 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:36,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:36,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-09-16 10:45:36,912 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1517240943, now seen corresponding path program 57 times [2022-09-16 10:45:36,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:36,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628932266] [2022-09-16 10:45:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:36,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:37,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:37,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628932266] [2022-09-16 10:45:37,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628932266] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:37,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:37,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:37,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724031764] [2022-09-16 10:45:37,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:37,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:37,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:37,434 INFO L87 Difference]: Start difference. First operand 8271 states and 16952 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:41,626 INFO L93 Difference]: Finished difference Result 13155 states and 26921 transitions. [2022-09-16 10:45:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:45:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:41,646 INFO L225 Difference]: With dead ends: 13155 [2022-09-16 10:45:41,646 INFO L226 Difference]: Without dead ends: 13155 [2022-09-16 10:45:41,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1132, Invalid=4720, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:45:41,647 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2022 mSDsluCounter, 6714 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 7217 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:41,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 7217 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:45:41,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13155 states. [2022-09-16 10:45:41,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13155 to 7886. [2022-09-16 10:45:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7886 states, 7880 states have (on average 2.0503807106598986) internal successors, (16157), 7885 states have internal predecessors, (16157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7886 states to 7886 states and 16157 transitions. [2022-09-16 10:45:41,802 INFO L78 Accepts]: Start accepts. Automaton has 7886 states and 16157 transitions. Word has length 96 [2022-09-16 10:45:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:41,802 INFO L495 AbstractCegarLoop]: Abstraction has 7886 states and 16157 transitions. [2022-09-16 10:45:41,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7886 states and 16157 transitions. [2022-09-16 10:45:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:41,805 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:41,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:41,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-09-16 10:45:41,805 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:41,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1931449235, now seen corresponding path program 58 times [2022-09-16 10:45:41,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:41,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731438736] [2022-09-16 10:45:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:41,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:42,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:42,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731438736] [2022-09-16 10:45:42,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731438736] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:42,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:42,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:42,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438209226] [2022-09-16 10:45:42,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:42,212 INFO L87 Difference]: Start difference. First operand 7886 states and 16157 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:45,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:45,015 INFO L93 Difference]: Finished difference Result 12328 states and 25268 transitions. [2022-09-16 10:45:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:45:45,016 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:45,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:45,029 INFO L225 Difference]: With dead ends: 12328 [2022-09-16 10:45:45,030 INFO L226 Difference]: Without dead ends: 12328 [2022-09-16 10:45:45,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=767, Invalid=3265, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:45:45,031 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1627 mSDsluCounter, 5305 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:45,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 5738 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12328 states. [2022-09-16 10:45:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12328 to 8292. [2022-09-16 10:45:45,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8292 states, 8286 states have (on average 2.0508085928071447) internal successors, (16993), 8291 states have internal predecessors, (16993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8292 states to 8292 states and 16993 transitions. [2022-09-16 10:45:45,123 INFO L78 Accepts]: Start accepts. Automaton has 8292 states and 16993 transitions. Word has length 96 [2022-09-16 10:45:45,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:45,124 INFO L495 AbstractCegarLoop]: Abstraction has 8292 states and 16993 transitions. [2022-09-16 10:45:45,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 8292 states and 16993 transitions. [2022-09-16 10:45:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:45,127 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:45,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:45,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-09-16 10:45:45,127 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1531922359, now seen corresponding path program 59 times [2022-09-16 10:45:45,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:45,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630931836] [2022-09-16 10:45:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:45,651 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 10:45:45,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630931836] [2022-09-16 10:45:45,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630931836] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:45,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:45,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747664932] [2022-09-16 10:45:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:45,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:45,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:45,652 INFO L87 Difference]: Start difference. First operand 8292 states and 16993 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:49,966 INFO L93 Difference]: Finished difference Result 13045 states and 26693 transitions. [2022-09-16 10:45:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:45:49,966 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:49,985 INFO L225 Difference]: With dead ends: 13045 [2022-09-16 10:45:49,985 INFO L226 Difference]: Without dead ends: 13045 [2022-09-16 10:45:49,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1275, Invalid=5367, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:45:49,987 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 2247 mSDsluCounter, 6366 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 6853 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:49,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 6853 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:45:49,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13045 states. [2022-09-16 10:45:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13045 to 7884. [2022-09-16 10:45:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:50,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:45:50,094 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:45:50,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:50,094 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:45:50,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:45:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:50,097 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:50,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:50,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-09-16 10:45:50,097 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:50,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:50,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1319390625, now seen corresponding path program 60 times [2022-09-16 10:45:50,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:50,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725165794] [2022-09-16 10:45:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:50,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:50,542 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 10:45:50,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:50,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725165794] [2022-09-16 10:45:50,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725165794] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:50,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:50,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:45:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382222818] [2022-09-16 10:45:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:50,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:45:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:50,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:45:50,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:45:50,543 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:53,224 INFO L93 Difference]: Finished difference Result 13305 states and 27264 transitions. [2022-09-16 10:45:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:45:53,225 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:53,242 INFO L225 Difference]: With dead ends: 13305 [2022-09-16 10:45:53,243 INFO L226 Difference]: Without dead ends: 13305 [2022-09-16 10:45:53,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=743, Invalid=3163, Unknown=0, NotChecked=0, Total=3906 [2022-09-16 10:45:53,243 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1636 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 5778 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:53,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 5778 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:45:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13305 states. [2022-09-16 10:45:53,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13305 to 8391. [2022-09-16 10:45:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8391 states, 8385 states have (on average 2.0502087060226595) internal successors, (17191), 8390 states have internal predecessors, (17191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8391 states to 8391 states and 17191 transitions. [2022-09-16 10:45:53,360 INFO L78 Accepts]: Start accepts. Automaton has 8391 states and 17191 transitions. Word has length 96 [2022-09-16 10:45:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:53,360 INFO L495 AbstractCegarLoop]: Abstraction has 8391 states and 17191 transitions. [2022-09-16 10:45:53,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 8391 states and 17191 transitions. [2022-09-16 10:45:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:53,364 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:53,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:53,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-09-16 10:45:53,364 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1917957415, now seen corresponding path program 61 times [2022-09-16 10:45:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:53,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132317455] [2022-09-16 10:45:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:53,904 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 10:45:53,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:53,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132317455] [2022-09-16 10:45:53,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132317455] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:53,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:53,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890792128] [2022-09-16 10:45:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:53,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:53,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:53,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:53,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:53,906 INFO L87 Difference]: Start difference. First operand 8391 states and 17191 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:58,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:58,267 INFO L93 Difference]: Finished difference Result 14231 states and 29127 transitions. [2022-09-16 10:45:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:45:58,267 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:45:58,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:58,288 INFO L225 Difference]: With dead ends: 14231 [2022-09-16 10:45:58,288 INFO L226 Difference]: Without dead ends: 14231 [2022-09-16 10:45:58,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1169, Invalid=4993, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:45:58,289 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 2276 mSDsluCounter, 6189 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:58,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 6662 Invalid, 2519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:45:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2022-09-16 10:45:58,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 8331. [2022-09-16 10:45:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8331 states, 8325 states have (on average 2.0505705705705704) internal successors, (17071), 8330 states have internal predecessors, (17071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8331 states to 8331 states and 17071 transitions. [2022-09-16 10:45:58,414 INFO L78 Accepts]: Start accepts. Automaton has 8331 states and 17071 transitions. Word has length 96 [2022-09-16 10:45:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:58,414 INFO L495 AbstractCegarLoop]: Abstraction has 8331 states and 17071 transitions. [2022-09-16 10:45:58,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8331 states and 17071 transitions. [2022-09-16 10:45:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:45:58,418 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:58,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:58,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-09-16 10:45:58,419 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:45:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash 118953093, now seen corresponding path program 62 times [2022-09-16 10:45:58,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:58,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955448533] [2022-09-16 10:45:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:58,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:45:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:45:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:58,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955448533] [2022-09-16 10:45:58,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955448533] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:45:58,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:45:58,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:45:58,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386642956] [2022-09-16 10:45:58,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:45:58,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:45:58,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:58,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:45:58,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:45:58,932 INFO L87 Difference]: Start difference. First operand 8331 states and 17071 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:03,497 INFO L93 Difference]: Finished difference Result 14653 states and 29990 transitions. [2022-09-16 10:46:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:46:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:03,517 INFO L225 Difference]: With dead ends: 14653 [2022-09-16 10:46:03,518 INFO L226 Difference]: Without dead ends: 14653 [2022-09-16 10:46:03,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:46:03,519 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1779 mSDsluCounter, 8468 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 9061 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:03,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 9061 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:46:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14653 states. [2022-09-16 10:46:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14653 to 7890. [2022-09-16 10:46:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7890 states, 7884 states have (on average 2.050355149670218) internal successors, (16165), 7889 states have internal predecessors, (16165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 16165 transitions. [2022-09-16 10:46:03,646 INFO L78 Accepts]: Start accepts. Automaton has 7890 states and 16165 transitions. Word has length 96 [2022-09-16 10:46:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:03,646 INFO L495 AbstractCegarLoop]: Abstraction has 7890 states and 16165 transitions. [2022-09-16 10:46:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7890 states and 16165 transitions. [2022-09-16 10:46:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:03,649 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:03,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:03,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-09-16 10:46:03,649 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash 541325385, now seen corresponding path program 63 times [2022-09-16 10:46:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:03,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591807025] [2022-09-16 10:46:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:04,034 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 10:46:04,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:04,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591807025] [2022-09-16 10:46:04,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591807025] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:04,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:04,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:04,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335552141] [2022-09-16 10:46:04,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:04,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:04,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:04,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:04,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:04,036 INFO L87 Difference]: Start difference. First operand 7890 states and 16165 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:08,252 INFO L93 Difference]: Finished difference Result 14707 states and 30164 transitions. [2022-09-16 10:46:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:46:08,253 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:08,272 INFO L225 Difference]: With dead ends: 14707 [2022-09-16 10:46:08,272 INFO L226 Difference]: Without dead ends: 14707 [2022-09-16 10:46:08,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1234, Invalid=4928, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:46:08,273 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 1807 mSDsluCounter, 6681 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 7237 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:08,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 7237 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14707 states. [2022-09-16 10:46:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14707 to 7909. [2022-09-16 10:46:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7903 states have (on average 2.0503606225483995) internal successors, (16204), 7908 states have internal predecessors, (16204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 16204 transitions. [2022-09-16 10:46:08,391 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 16204 transitions. Word has length 96 [2022-09-16 10:46:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:08,391 INFO L495 AbstractCegarLoop]: Abstraction has 7909 states and 16204 transitions. [2022-09-16 10:46:08,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 16204 transitions. [2022-09-16 10:46:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:08,394 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:08,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:08,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-09-16 10:46:08,394 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash -197326813, now seen corresponding path program 64 times [2022-09-16 10:46:08,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:08,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636764382] [2022-09-16 10:46:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:08,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:08,813 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 10:46:08,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636764382] [2022-09-16 10:46:08,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636764382] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:08,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:08,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069101596] [2022-09-16 10:46:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:08,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:08,814 INFO L87 Difference]: Start difference. First operand 7909 states and 16204 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:13,701 INFO L93 Difference]: Finished difference Result 15705 states and 32165 transitions. [2022-09-16 10:46:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-16 10:46:13,702 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:13,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:13,721 INFO L225 Difference]: With dead ends: 15705 [2022-09-16 10:46:13,722 INFO L226 Difference]: Without dead ends: 15705 [2022-09-16 10:46:13,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1373, Invalid=5767, Unknown=0, NotChecked=0, Total=7140 [2022-09-16 10:46:13,722 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1729 mSDsluCounter, 7275 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 7860 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:13,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 7860 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:46:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15705 states. [2022-09-16 10:46:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15705 to 8277. [2022-09-16 10:46:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8271 states have (on average 2.051021641881272) internal successors, (16964), 8276 states have internal predecessors, (16964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:13,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 16964 transitions. [2022-09-16 10:46:13,845 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 16964 transitions. Word has length 96 [2022-09-16 10:46:13,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:13,845 INFO L495 AbstractCegarLoop]: Abstraction has 8277 states and 16964 transitions. [2022-09-16 10:46:13,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:13,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 16964 transitions. [2022-09-16 10:46:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:13,849 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:13,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:13,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-09-16 10:46:13,849 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:13,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:13,849 INFO L85 PathProgramCache]: Analyzing trace with hash 634268889, now seen corresponding path program 65 times [2022-09-16 10:46:13,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:13,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259884294] [2022-09-16 10:46:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:14,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:14,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259884294] [2022-09-16 10:46:14,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259884294] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:14,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:14,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:14,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224944199] [2022-09-16 10:46:14,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:14,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:14,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:14,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:14,340 INFO L87 Difference]: Start difference. First operand 8277 states and 16964 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:18,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:18,886 INFO L93 Difference]: Finished difference Result 14425 states and 29498 transitions. [2022-09-16 10:46:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:46:18,886 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:18,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:18,910 INFO L225 Difference]: With dead ends: 14425 [2022-09-16 10:46:18,910 INFO L226 Difference]: Without dead ends: 14425 [2022-09-16 10:46:18,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1132, Invalid=4720, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:46:18,911 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1906 mSDsluCounter, 7900 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 8460 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:18,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 8460 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:46:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14425 states. [2022-09-16 10:46:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14425 to 7892. [2022-09-16 10:46:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7892 states, 7886 states have (on average 2.050342378899315) internal successors, (16169), 7891 states have internal predecessors, (16169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7892 states to 7892 states and 16169 transitions. [2022-09-16 10:46:19,046 INFO L78 Accepts]: Start accepts. Automaton has 7892 states and 16169 transitions. Word has length 96 [2022-09-16 10:46:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 7892 states and 16169 transitions. [2022-09-16 10:46:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7892 states and 16169 transitions. [2022-09-16 10:46:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:19,049 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:19,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:19,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-09-16 10:46:19,050 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1048477181, now seen corresponding path program 66 times [2022-09-16 10:46:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:19,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464118072] [2022-09-16 10:46:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:19,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:19,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:19,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464118072] [2022-09-16 10:46:19,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464118072] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:19,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:19,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:19,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796236714] [2022-09-16 10:46:19,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:19,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:19,481 INFO L87 Difference]: Start difference. First operand 7892 states and 16169 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:22,896 INFO L93 Difference]: Finished difference Result 13455 states and 27580 transitions. [2022-09-16 10:46:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:46:22,896 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:22,912 INFO L225 Difference]: With dead ends: 13455 [2022-09-16 10:46:22,912 INFO L226 Difference]: Without dead ends: 13455 [2022-09-16 10:46:22,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=857, Invalid=3565, Unknown=0, NotChecked=0, Total=4422 [2022-09-16 10:46:22,913 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 1642 mSDsluCounter, 6306 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:22,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 6799 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:46:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13455 states. [2022-09-16 10:46:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13455 to 8298. [2022-09-16 10:46:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 8292 states have (on average 2.05077182826821) internal successors, (17005), 8297 states have internal predecessors, (17005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 17005 transitions. [2022-09-16 10:46:23,062 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 17005 transitions. Word has length 96 [2022-09-16 10:46:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:23,062 INFO L495 AbstractCegarLoop]: Abstraction has 8298 states and 17005 transitions. [2022-09-16 10:46:23,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 17005 transitions. [2022-09-16 10:46:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:23,066 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:23,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:23,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-09-16 10:46:23,067 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:23,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1880072883, now seen corresponding path program 67 times [2022-09-16 10:46:23,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:23,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910357120] [2022-09-16 10:46:23,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:23,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:23,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:23,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910357120] [2022-09-16 10:46:23,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910357120] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:23,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:23,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:23,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432471094] [2022-09-16 10:46:23,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:23,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:23,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:23,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:23,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:23,660 INFO L87 Difference]: Start difference. First operand 8298 states and 17005 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:28,293 INFO L93 Difference]: Finished difference Result 14172 states and 29005 transitions. [2022-09-16 10:46:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:46:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:28,349 INFO L225 Difference]: With dead ends: 14172 [2022-09-16 10:46:28,349 INFO L226 Difference]: Without dead ends: 14172 [2022-09-16 10:46:28,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1275, Invalid=5367, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:46:28,350 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2100 mSDsluCounter, 7014 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 7538 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:28,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 7538 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14172 states. [2022-09-16 10:46:28,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14172 to 7885. [2022-09-16 10:46:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7885 states, 7879 states have (on average 2.050387104962559) internal successors, (16155), 7884 states have internal predecessors, (16155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7885 states to 7885 states and 16155 transitions. [2022-09-16 10:46:28,470 INFO L78 Accepts]: Start accepts. Automaton has 7885 states and 16155 transitions. Word has length 96 [2022-09-16 10:46:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:28,470 INFO L495 AbstractCegarLoop]: Abstraction has 7885 states and 16155 transitions. [2022-09-16 10:46:28,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7885 states and 16155 transitions. [2022-09-16 10:46:28,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:28,473 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:28,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:28,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-09-16 10:46:28,473 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:28,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1328484061, now seen corresponding path program 68 times [2022-09-16 10:46:28,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:28,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306974604] [2022-09-16 10:46:28,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:28,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:28,856 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 10:46:28,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:28,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306974604] [2022-09-16 10:46:28,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306974604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:28,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:28,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:28,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624357999] [2022-09-16 10:46:28,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:28,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:28,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:28,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:28,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:28,857 INFO L87 Difference]: Start difference. First operand 7885 states and 16155 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:31,604 INFO L93 Difference]: Finished difference Result 12659 states and 25933 transitions. [2022-09-16 10:46:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:46:31,604 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:31,620 INFO L225 Difference]: With dead ends: 12659 [2022-09-16 10:46:31,620 INFO L226 Difference]: Without dead ends: 12659 [2022-09-16 10:46:31,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=687, Invalid=2973, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:46:31,621 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1490 mSDsluCounter, 6486 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:31,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 6936 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:46:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12659 states. [2022-09-16 10:46:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12659 to 8405. [2022-09-16 10:46:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8405 states, 8399 states have (on average 2.050125014882724) internal successors, (17219), 8404 states have internal predecessors, (17219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8405 states to 8405 states and 17219 transitions. [2022-09-16 10:46:31,738 INFO L78 Accepts]: Start accepts. Automaton has 8405 states and 17219 transitions. Word has length 96 [2022-09-16 10:46:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:31,738 INFO L495 AbstractCegarLoop]: Abstraction has 8405 states and 17219 transitions. [2022-09-16 10:46:31,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8405 states and 17219 transitions. [2022-09-16 10:46:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:31,742 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:31,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:31,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-09-16 10:46:31,742 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:31,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1908863979, now seen corresponding path program 69 times [2022-09-16 10:46:31,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:31,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182989154] [2022-09-16 10:46:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:31,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:32,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:32,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182989154] [2022-09-16 10:46:32,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182989154] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:32,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:32,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:32,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714401536] [2022-09-16 10:46:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:32,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:32,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:32,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:32,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:32,261 INFO L87 Difference]: Start difference. First operand 8405 states and 17219 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:37,019 INFO L93 Difference]: Finished difference Result 13888 states and 28414 transitions. [2022-09-16 10:46:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:46:37,021 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:37,042 INFO L225 Difference]: With dead ends: 13888 [2022-09-16 10:46:37,042 INFO L226 Difference]: Without dead ends: 13888 [2022-09-16 10:46:37,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1244, Invalid=5398, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:46:37,043 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 2011 mSDsluCounter, 6771 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:37,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 7247 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:46:37,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-09-16 10:46:37,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 8405. [2022-09-16 10:46:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8405 states, 8399 states have (on average 2.050125014882724) internal successors, (17219), 8404 states have internal predecessors, (17219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8405 states to 8405 states and 17219 transitions. [2022-09-16 10:46:37,165 INFO L78 Accepts]: Start accepts. Automaton has 8405 states and 17219 transitions. Word has length 96 [2022-09-16 10:46:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:37,165 INFO L495 AbstractCegarLoop]: Abstraction has 8405 states and 17219 transitions. [2022-09-16 10:46:37,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:37,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8405 states and 17219 transitions. [2022-09-16 10:46:37,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:37,169 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:37,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:37,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-09-16 10:46:37,170 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 109859657, now seen corresponding path program 70 times [2022-09-16 10:46:37,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:37,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336099164] [2022-09-16 10:46:37,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:37,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:37,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:37,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336099164] [2022-09-16 10:46:37,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336099164] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:37,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:37,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080768457] [2022-09-16 10:46:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:37,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:37,696 INFO L87 Difference]: Start difference. First operand 8405 states and 17219 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:42,121 INFO L93 Difference]: Finished difference Result 14184 states and 29016 transitions. [2022-09-16 10:46:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:46:42,122 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:42,144 INFO L225 Difference]: With dead ends: 14184 [2022-09-16 10:46:42,144 INFO L226 Difference]: Without dead ends: 14184 [2022-09-16 10:46:42,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1181, Invalid=5139, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:46:42,145 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 1987 mSDsluCounter, 6572 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:42,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 7168 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:46:42,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14184 states. [2022-09-16 10:46:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14184 to 7884. [2022-09-16 10:46:42,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:46:42,269 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:46:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:42,269 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:46:42,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:46:42,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:42,272 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:42,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:42,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-09-16 10:46:42,273 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1119284657, now seen corresponding path program 71 times [2022-09-16 10:46:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16171048] [2022-09-16 10:46:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:42,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16171048] [2022-09-16 10:46:42,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16171048] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:42,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:42,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357309369] [2022-09-16 10:46:42,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:42,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:42,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:42,661 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:45,512 INFO L93 Difference]: Finished difference Result 12925 states and 26484 transitions. [2022-09-16 10:46:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:46:45,513 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:45,528 INFO L225 Difference]: With dead ends: 12925 [2022-09-16 10:46:45,529 INFO L226 Difference]: Without dead ends: 12925 [2022-09-16 10:46:45,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=771, Invalid=3261, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:46:45,529 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1669 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:45,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 5294 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:46:45,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12925 states. [2022-09-16 10:46:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12925 to 8385. [2022-09-16 10:46:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8385 states, 8379 states have (on average 2.0502446592672157) internal successors, (17179), 8384 states have internal predecessors, (17179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8385 states to 8385 states and 17179 transitions. [2022-09-16 10:46:45,634 INFO L78 Accepts]: Start accepts. Automaton has 8385 states and 17179 transitions. Word has length 96 [2022-09-16 10:46:45,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:45,634 INFO L495 AbstractCegarLoop]: Abstraction has 8385 states and 17179 transitions. [2022-09-16 10:46:45,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand 8385 states and 17179 transitions. [2022-09-16 10:46:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:45,638 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:45,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:45,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-09-16 10:46:45,638 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2118063383, now seen corresponding path program 72 times [2022-09-16 10:46:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:45,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572803429] [2022-09-16 10:46:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:46,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:46,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572803429] [2022-09-16 10:46:46,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572803429] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:46,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:46,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030912158] [2022-09-16 10:46:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:46,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:46,165 INFO L87 Difference]: Start difference. First operand 8385 states and 17179 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:50,675 INFO L93 Difference]: Finished difference Result 13851 states and 28347 transitions. [2022-09-16 10:46:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:46:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:50,691 INFO L225 Difference]: With dead ends: 13851 [2022-09-16 10:46:50,691 INFO L226 Difference]: Without dead ends: 13851 [2022-09-16 10:46:50,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1169, Invalid=4993, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:46:50,692 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1950 mSDsluCounter, 7070 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 7545 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:50,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 7545 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:46:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13851 states. [2022-09-16 10:46:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13851 to 8325. [2022-09-16 10:46:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8325 states, 8319 states have (on average 2.0506070441158792) internal successors, (17059), 8324 states have internal predecessors, (17059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8325 states to 8325 states and 17059 transitions. [2022-09-16 10:46:50,791 INFO L78 Accepts]: Start accepts. Automaton has 8325 states and 17059 transitions. Word has length 96 [2022-09-16 10:46:50,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:50,791 INFO L495 AbstractCegarLoop]: Abstraction has 8325 states and 17059 transitions. [2022-09-16 10:46:50,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8325 states and 17059 transitions. [2022-09-16 10:46:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:50,795 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:50,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:50,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-09-16 10:46:50,795 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:50,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:50,796 INFO L85 PathProgramCache]: Analyzing trace with hash 319059061, now seen corresponding path program 73 times [2022-09-16 10:46:50,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:50,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172845951] [2022-09-16 10:46:50,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:50,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:51,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:51,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172845951] [2022-09-16 10:46:51,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172845951] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:51,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:51,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:46:51,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717365374] [2022-09-16 10:46:51,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:51,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:46:51,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:46:51,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:46:51,350 INFO L87 Difference]: Start difference. First operand 8325 states and 17059 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:46:55,755 INFO L93 Difference]: Finished difference Result 14273 states and 29210 transitions. [2022-09-16 10:46:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:46:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:46:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:46:55,773 INFO L225 Difference]: With dead ends: 14273 [2022-09-16 10:46:55,774 INFO L226 Difference]: Without dead ends: 14273 [2022-09-16 10:46:55,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:46:55,774 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1703 mSDsluCounter, 8257 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:46:55,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 8852 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2956 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:46:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14273 states. [2022-09-16 10:46:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14273 to 7884. [2022-09-16 10:46:55,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7878 states have (on average 2.0503935008885503) internal successors, (16153), 7883 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 16153 transitions. [2022-09-16 10:46:55,888 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 16153 transitions. Word has length 96 [2022-09-16 10:46:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:46:55,888 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 16153 transitions. [2022-09-16 10:46:55,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:46:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 16153 transitions. [2022-09-16 10:46:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:46:55,891 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:46:55,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:46:55,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-09-16 10:46:55,891 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:46:55,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:46:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 741431353, now seen corresponding path program 74 times [2022-09-16 10:46:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:46:55,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67357138] [2022-09-16 10:46:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:46:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:46:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:46:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:46:56,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:46:56,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67357138] [2022-09-16 10:46:56,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67357138] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:46:56,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:46:56,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:46:56,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794359632] [2022-09-16 10:46:56,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:46:56,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:46:56,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:46:56,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:46:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:46:56,278 INFO L87 Difference]: Start difference. First operand 7884 states and 16153 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:00,216 INFO L93 Difference]: Finished difference Result 13855 states and 28419 transitions. [2022-09-16 10:47:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-09-16 10:47:00,217 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:00,231 INFO L225 Difference]: With dead ends: 13855 [2022-09-16 10:47:00,232 INFO L226 Difference]: Without dead ends: 13855 [2022-09-16 10:47:00,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1204, Invalid=4802, Unknown=0, NotChecked=0, Total=6006 [2022-09-16 10:47:00,232 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 1837 mSDsluCounter, 6595 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:00,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 7158 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:47:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13855 states. [2022-09-16 10:47:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13855 to 7876. [2022-09-16 10:47:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7876 states, 7870 states have (on average 2.0504447268106736) internal successors, (16137), 7875 states have internal predecessors, (16137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7876 states to 7876 states and 16137 transitions. [2022-09-16 10:47:00,330 INFO L78 Accepts]: Start accepts. Automaton has 7876 states and 16137 transitions. Word has length 96 [2022-09-16 10:47:00,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:00,330 INFO L495 AbstractCegarLoop]: Abstraction has 7876 states and 16137 transitions. [2022-09-16 10:47:00,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7876 states and 16137 transitions. [2022-09-16 10:47:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:00,332 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:00,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:00,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-09-16 10:47:00,333 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2779155, now seen corresponding path program 75 times [2022-09-16 10:47:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110692665] [2022-09-16 10:47:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:00,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:00,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110692665] [2022-09-16 10:47:00,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110692665] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:00,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:00,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:00,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152510451] [2022-09-16 10:47:00,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:00,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:00,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:00,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:00,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:00,730 INFO L87 Difference]: Start difference. First operand 7876 states and 16137 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:05,653 INFO L93 Difference]: Finished difference Result 14853 states and 30420 transitions. [2022-09-16 10:47:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-16 10:47:05,653 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:05,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:05,673 INFO L225 Difference]: With dead ends: 14853 [2022-09-16 10:47:05,673 INFO L226 Difference]: Without dead ends: 14853 [2022-09-16 10:47:05,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1628 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1402, Invalid=5908, Unknown=0, NotChecked=0, Total=7310 [2022-09-16 10:47:05,674 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 1675 mSDsluCounter, 7752 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 8340 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:05,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 8340 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:47:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14853 states. [2022-09-16 10:47:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14853 to 8244. [2022-09-16 10:47:05,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8244 states, 8238 states have (on average 2.051104637047827) internal successors, (16897), 8243 states have internal predecessors, (16897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 16897 transitions. [2022-09-16 10:47:05,799 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 16897 transitions. Word has length 96 [2022-09-16 10:47:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:05,799 INFO L495 AbstractCegarLoop]: Abstraction has 8244 states and 16897 transitions. [2022-09-16 10:47:05,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 16897 transitions. [2022-09-16 10:47:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:05,803 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:05,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:05,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-09-16 10:47:05,803 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:05,804 INFO L85 PathProgramCache]: Analyzing trace with hash 834374857, now seen corresponding path program 76 times [2022-09-16 10:47:05,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:05,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665142235] [2022-09-16 10:47:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:05,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:06,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:06,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665142235] [2022-09-16 10:47:06,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665142235] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:06,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:06,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822024797] [2022-09-16 10:47:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:06,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:06,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:06,296 INFO L87 Difference]: Start difference. First operand 8244 states and 16897 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:10,927 INFO L93 Difference]: Finished difference Result 13651 states and 27912 transitions. [2022-09-16 10:47:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:47:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:10,945 INFO L225 Difference]: With dead ends: 13651 [2022-09-16 10:47:10,945 INFO L226 Difference]: Without dead ends: 13651 [2022-09-16 10:47:10,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1179, Invalid=4983, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:47:10,946 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 2039 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 8725 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:10,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 8725 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:47:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2022-09-16 10:47:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 7859. [2022-09-16 10:47:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7859 states, 7853 states have (on average 2.05042658856488) internal successors, (16102), 7858 states have internal predecessors, (16102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7859 states to 7859 states and 16102 transitions. [2022-09-16 10:47:11,061 INFO L78 Accepts]: Start accepts. Automaton has 7859 states and 16102 transitions. Word has length 96 [2022-09-16 10:47:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:11,061 INFO L495 AbstractCegarLoop]: Abstraction has 7859 states and 16102 transitions. [2022-09-16 10:47:11,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 7859 states and 16102 transitions. [2022-09-16 10:47:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:11,064 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:11,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:11,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-09-16 10:47:11,064 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:11,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:11,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1248583149, now seen corresponding path program 77 times [2022-09-16 10:47:11,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:11,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401912104] [2022-09-16 10:47:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:11,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:11,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:11,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401912104] [2022-09-16 10:47:11,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401912104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:11,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:11,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:11,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929410443] [2022-09-16 10:47:11,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:11,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:11,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:11,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:11,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:11,455 INFO L87 Difference]: Start difference. First operand 7859 states and 16102 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:14,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:14,913 INFO L93 Difference]: Finished difference Result 13062 states and 26774 transitions. [2022-09-16 10:47:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:47:14,913 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:14,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:14,928 INFO L225 Difference]: With dead ends: 13062 [2022-09-16 10:47:14,928 INFO L226 Difference]: Without dead ends: 13062 [2022-09-16 10:47:14,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=885, Invalid=3671, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:47:14,929 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1552 mSDsluCounter, 7038 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 7534 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:14,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 7534 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:47:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13062 states. [2022-09-16 10:47:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13062 to 8265. [2022-09-16 10:47:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8265 states, 8259 states have (on average 2.050853614239012) internal successors, (16938), 8264 states have internal predecessors, (16938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8265 states to 8265 states and 16938 transitions. [2022-09-16 10:47:15,046 INFO L78 Accepts]: Start accepts. Automaton has 8265 states and 16938 transitions. Word has length 96 [2022-09-16 10:47:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:15,046 INFO L495 AbstractCegarLoop]: Abstraction has 8265 states and 16938 transitions. [2022-09-16 10:47:15,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8265 states and 16938 transitions. [2022-09-16 10:47:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:15,050 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:15,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:15,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-09-16 10:47:15,050 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2080178851, now seen corresponding path program 78 times [2022-09-16 10:47:15,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:15,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690835410] [2022-09-16 10:47:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:15,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:15,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690835410] [2022-09-16 10:47:15,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690835410] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:15,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:15,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:15,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040211331] [2022-09-16 10:47:15,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:15,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:15,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:15,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:15,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:15,532 INFO L87 Difference]: Start difference. First operand 8265 states and 16938 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:19,887 INFO L93 Difference]: Finished difference Result 13779 states and 28199 transitions. [2022-09-16 10:47:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:47:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:19,901 INFO L225 Difference]: With dead ends: 13779 [2022-09-16 10:47:19,901 INFO L226 Difference]: Without dead ends: 13779 [2022-09-16 10:47:19,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1275, Invalid=5367, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:47:19,902 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 2161 mSDsluCounter, 6481 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 7007 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:19,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 7007 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:47:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2022-09-16 10:47:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 7852. [2022-09-16 10:47:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7852 states, 7846 states have (on average 2.050471577874076) internal successors, (16088), 7851 states have internal predecessors, (16088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 16088 transitions. [2022-09-16 10:47:20,017 INFO L78 Accepts]: Start accepts. Automaton has 7852 states and 16088 transitions. Word has length 96 [2022-09-16 10:47:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:20,017 INFO L495 AbstractCegarLoop]: Abstraction has 7852 states and 16088 transitions. [2022-09-16 10:47:20,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:20,018 INFO L276 IsEmpty]: Start isEmpty. Operand 7852 states and 16088 transitions. [2022-09-16 10:47:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:20,021 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:20,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:20,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-09-16 10:47:20,021 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:20,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:20,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1128378093, now seen corresponding path program 79 times [2022-09-16 10:47:20,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:20,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012347888] [2022-09-16 10:47:20,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:20,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:20,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012347888] [2022-09-16 10:47:20,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012347888] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:20,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:20,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:20,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347897591] [2022-09-16 10:47:20,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:20,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:20,390 INFO L87 Difference]: Start difference. First operand 7852 states and 16088 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:23,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:23,045 INFO L93 Difference]: Finished difference Result 13026 states and 26686 transitions. [2022-09-16 10:47:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:47:23,045 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:23,061 INFO L225 Difference]: With dead ends: 13026 [2022-09-16 10:47:23,062 INFO L226 Difference]: Without dead ends: 13026 [2022-09-16 10:47:23,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=744, Invalid=3162, Unknown=0, NotChecked=0, Total=3906 [2022-09-16 10:47:23,062 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 1712 mSDsluCounter, 6332 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 6815 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:23,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 6815 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:47:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13026 states. [2022-09-16 10:47:23,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13026 to 8372. [2022-09-16 10:47:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8372 states, 8366 states have (on average 2.0502032034425053) internal successors, (17152), 8371 states have internal predecessors, (17152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:23,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8372 states to 8372 states and 17152 transitions. [2022-09-16 10:47:23,166 INFO L78 Accepts]: Start accepts. Automaton has 8372 states and 17152 transitions. Word has length 96 [2022-09-16 10:47:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:23,167 INFO L495 AbstractCegarLoop]: Abstraction has 8372 states and 17152 transitions. [2022-09-16 10:47:23,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:23,167 INFO L276 IsEmpty]: Start isEmpty. Operand 8372 states and 17152 transitions. [2022-09-16 10:47:23,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:23,170 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:23,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:23,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-09-16 10:47:23,170 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2108969947, now seen corresponding path program 80 times [2022-09-16 10:47:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:23,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823818629] [2022-09-16 10:47:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:23,693 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 10:47:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:23,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823818629] [2022-09-16 10:47:23,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823818629] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:23,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:23,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152616985] [2022-09-16 10:47:23,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:23,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:23,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:23,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:23,695 INFO L87 Difference]: Start difference. First operand 8372 states and 17152 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:27,902 INFO L93 Difference]: Finished difference Result 14138 states and 28930 transitions. [2022-09-16 10:47:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:47:27,902 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:27,919 INFO L225 Difference]: With dead ends: 14138 [2022-09-16 10:47:27,919 INFO L226 Difference]: Without dead ends: 14138 [2022-09-16 10:47:27,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:47:27,920 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 2237 mSDsluCounter, 6005 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 6498 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:27,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 6498 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:47:27,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14138 states. [2022-09-16 10:47:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14138 to 8372. [2022-09-16 10:47:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8372 states, 8366 states have (on average 2.0502032034425053) internal successors, (17152), 8371 states have internal predecessors, (17152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8372 states to 8372 states and 17152 transitions. [2022-09-16 10:47:28,022 INFO L78 Accepts]: Start accepts. Automaton has 8372 states and 17152 transitions. Word has length 96 [2022-09-16 10:47:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:28,022 INFO L495 AbstractCegarLoop]: Abstraction has 8372 states and 17152 transitions. [2022-09-16 10:47:28,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8372 states and 17152 transitions. [2022-09-16 10:47:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:28,025 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:28,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:28,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-09-16 10:47:28,025 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 309965625, now seen corresponding path program 81 times [2022-09-16 10:47:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:28,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713852716] [2022-09-16 10:47:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:28,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:28,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713852716] [2022-09-16 10:47:28,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713852716] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:28,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:28,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:28,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836843391] [2022-09-16 10:47:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:28,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:28,504 INFO L87 Difference]: Start difference. First operand 8372 states and 17152 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:32,800 INFO L93 Difference]: Finished difference Result 14434 states and 29532 transitions. [2022-09-16 10:47:32,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:47:32,800 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:32,818 INFO L225 Difference]: With dead ends: 14434 [2022-09-16 10:47:32,818 INFO L226 Difference]: Without dead ends: 14434 [2022-09-16 10:47:32,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1109, Invalid=4743, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:47:32,819 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1755 mSDsluCounter, 8451 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 9064 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:32,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 9064 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:47:32,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14434 states. [2022-09-16 10:47:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14434 to 7851. [2022-09-16 10:47:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7851 states, 7845 states have (on average 2.050478011472275) internal successors, (16086), 7850 states have internal predecessors, (16086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7851 states to 7851 states and 16086 transitions. [2022-09-16 10:47:32,922 INFO L78 Accepts]: Start accepts. Automaton has 7851 states and 16086 transitions. Word has length 96 [2022-09-16 10:47:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:32,923 INFO L495 AbstractCegarLoop]: Abstraction has 7851 states and 16086 transitions. [2022-09-16 10:47:32,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7851 states and 16086 transitions. [2022-09-16 10:47:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:32,925 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:32,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:32,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-09-16 10:47:32,926 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:32,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash -963694399, now seen corresponding path program 82 times [2022-09-16 10:47:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:32,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368210036] [2022-09-16 10:47:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:33,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:33,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368210036] [2022-09-16 10:47:33,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368210036] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:33,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:33,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804885371] [2022-09-16 10:47:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:33,307 INFO L87 Difference]: Start difference. First operand 7851 states and 16086 transitions. Second operand has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:35,540 INFO L93 Difference]: Finished difference Result 11806 states and 24186 transitions. [2022-09-16 10:47:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:47:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:35,554 INFO L225 Difference]: With dead ends: 11806 [2022-09-16 10:47:35,554 INFO L226 Difference]: Without dead ends: 11806 [2022-09-16 10:47:35,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=690, Invalid=2970, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:47:35,554 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 1757 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 4798 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:35,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 4798 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:47:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11806 states. [2022-09-16 10:47:35,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11806 to 7627. [2022-09-16 10:47:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7627 states, 7621 states have (on average 2.050911953811836) internal successors, (15630), 7626 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 15630 transitions. [2022-09-16 10:47:35,643 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 15630 transitions. Word has length 96 [2022-09-16 10:47:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:35,643 INFO L495 AbstractCegarLoop]: Abstraction has 7627 states and 15630 transitions. [2022-09-16 10:47:35,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.84) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:35,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 15630 transitions. [2022-09-16 10:47:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:35,646 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:35,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:35,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-09-16 10:47:35,646 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:35,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2021313655, now seen corresponding path program 83 times [2022-09-16 10:47:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689590439] [2022-09-16 10:47:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:35,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:36,141 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 10:47:36,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:36,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689590439] [2022-09-16 10:47:36,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689590439] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:36,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:36,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:36,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506245576] [2022-09-16 10:47:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:36,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:36,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:36,143 INFO L87 Difference]: Start difference. First operand 7627 states and 15630 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:40,511 INFO L93 Difference]: Finished difference Result 13130 states and 26865 transitions. [2022-09-16 10:47:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:47:40,511 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:40,527 INFO L225 Difference]: With dead ends: 13130 [2022-09-16 10:47:40,527 INFO L226 Difference]: Without dead ends: 13130 [2022-09-16 10:47:40,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1244, Invalid=5398, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:47:40,528 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2176 mSDsluCounter, 5745 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 6223 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:40,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 6223 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:47:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2022-09-16 10:47:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 7627. [2022-09-16 10:47:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7627 states, 7621 states have (on average 2.050911953811836) internal successors, (15630), 7626 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:40,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 15630 transitions. [2022-09-16 10:47:40,628 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 15630 transitions. Word has length 96 [2022-09-16 10:47:40,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:40,628 INFO L495 AbstractCegarLoop]: Abstraction has 7627 states and 15630 transitions. [2022-09-16 10:47:40,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 15630 transitions. [2022-09-16 10:47:40,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:47:40,630 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:40,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:40,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-09-16 10:47:40,631 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:40,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:40,631 INFO L85 PathProgramCache]: Analyzing trace with hash 474649319, now seen corresponding path program 84 times [2022-09-16 10:47:40,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:40,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843980919] [2022-09-16 10:47:40,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:40,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:41,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843980919] [2022-09-16 10:47:41,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843980919] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:41,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:41,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:41,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651593460] [2022-09-16 10:47:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:41,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:41,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:41,114 INFO L87 Difference]: Start difference. First operand 7627 states and 15630 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:45,542 INFO L93 Difference]: Finished difference Result 13331 states and 27269 transitions. [2022-09-16 10:47:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:47:45,543 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-09-16 10:47:45,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:45,557 INFO L225 Difference]: With dead ends: 13331 [2022-09-16 10:47:45,558 INFO L226 Difference]: Without dead ends: 13331 [2022-09-16 10:47:45,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1181, Invalid=5139, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:47:45,558 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 1745 mSDsluCounter, 8415 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 9013 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:45,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 9013 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:47:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13331 states. [2022-09-16 10:47:45,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13331 to 6992. [2022-09-16 10:47:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 6986 states have (on average 2.050959060979101) internal successors, (14328), 6991 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 14328 transitions. [2022-09-16 10:47:45,651 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 14328 transitions. Word has length 96 [2022-09-16 10:47:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:45,651 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 14328 transitions. [2022-09-16 10:47:45,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 14328 transitions. [2022-09-16 10:47:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:47:45,653 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:45,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:45,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-09-16 10:47:45,653 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:45,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:45,653 INFO L85 PathProgramCache]: Analyzing trace with hash 843364336, now seen corresponding path program 1 times [2022-09-16 10:47:45,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:45,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397731676] [2022-09-16 10:47:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:45,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:46,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397731676] [2022-09-16 10:47:46,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397731676] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:46,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:46,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:47:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127429617] [2022-09-16 10:47:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:46,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:47:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:47:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:47:46,153 INFO L87 Difference]: Start difference. First operand 6992 states and 14328 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:49,474 INFO L93 Difference]: Finished difference Result 12285 states and 25160 transitions. [2022-09-16 10:47:49,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-16 10:47:49,475 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:47:49,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:49,487 INFO L225 Difference]: With dead ends: 12285 [2022-09-16 10:47:49,487 INFO L226 Difference]: Without dead ends: 12285 [2022-09-16 10:47:49,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=832, Invalid=3458, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:47:49,488 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1865 mSDsluCounter, 5395 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 5808 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:49,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 5808 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:47:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12285 states. [2022-09-16 10:47:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12285 to 8397. [2022-09-16 10:47:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8397 states, 8391 states have (on average 2.0520796091049935) internal successors, (17219), 8396 states have internal predecessors, (17219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8397 states to 8397 states and 17219 transitions. [2022-09-16 10:47:49,578 INFO L78 Accepts]: Start accepts. Automaton has 8397 states and 17219 transitions. Word has length 97 [2022-09-16 10:47:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:49,578 INFO L495 AbstractCegarLoop]: Abstraction has 8397 states and 17219 transitions. [2022-09-16 10:47:49,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8397 states and 17219 transitions. [2022-09-16 10:47:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:47:49,581 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:49,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:49,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-09-16 10:47:49,581 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:49,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1878061528, now seen corresponding path program 2 times [2022-09-16 10:47:49,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:49,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403292290] [2022-09-16 10:47:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:49,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:50,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:50,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403292290] [2022-09-16 10:47:50,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403292290] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:50,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:50,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:50,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353110956] [2022-09-16 10:47:50,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:50,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:50,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:50,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:50,149 INFO L87 Difference]: Start difference. First operand 8397 states and 17219 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:53,835 INFO L93 Difference]: Finished difference Result 14368 states and 29401 transitions. [2022-09-16 10:47:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-09-16 10:47:53,836 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:47:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:53,852 INFO L225 Difference]: With dead ends: 14368 [2022-09-16 10:47:53,853 INFO L226 Difference]: Without dead ends: 14368 [2022-09-16 10:47:53,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 968 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=959, Invalid=4153, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:47:53,854 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2090 mSDsluCounter, 5513 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:53,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 5943 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:47:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14368 states. [2022-09-16 10:47:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14368 to 8856. [2022-09-16 10:47:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8856 states, 8850 states have (on average 2.051638418079096) internal successors, (18157), 8855 states have internal predecessors, (18157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8856 states to 8856 states and 18157 transitions. [2022-09-16 10:47:53,982 INFO L78 Accepts]: Start accepts. Automaton has 8856 states and 18157 transitions. Word has length 97 [2022-09-16 10:47:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:53,982 INFO L495 AbstractCegarLoop]: Abstraction has 8856 states and 18157 transitions. [2022-09-16 10:47:53,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8856 states and 18157 transitions. [2022-09-16 10:47:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:47:53,986 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:53,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:53,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-09-16 10:47:53,986 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:53,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:53,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1284636952, now seen corresponding path program 3 times [2022-09-16 10:47:53,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:53,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795747812] [2022-09-16 10:47:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:53,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:47:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:54,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795747812] [2022-09-16 10:47:54,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795747812] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:54,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:54,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:47:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471258626] [2022-09-16 10:47:54,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:54,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:47:54,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:54,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:47:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:47:54,518 INFO L87 Difference]: Start difference. First operand 8856 states and 18157 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:59,357 INFO L93 Difference]: Finished difference Result 15800 states and 32348 transitions. [2022-09-16 10:47:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:47:59,357 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:47:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:59,374 INFO L225 Difference]: With dead ends: 15800 [2022-09-16 10:47:59,374 INFO L226 Difference]: Without dead ends: 15800 [2022-09-16 10:47:59,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1245, Invalid=5397, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:47:59,375 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 2185 mSDsluCounter, 6329 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6791 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:59,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6791 Invalid, 2412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:47:59,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15800 states. [2022-09-16 10:47:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15800 to 8856. [2022-09-16 10:47:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8856 states, 8850 states have (on average 2.051638418079096) internal successors, (18157), 8855 states have internal predecessors, (18157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8856 states to 8856 states and 18157 transitions. [2022-09-16 10:47:59,501 INFO L78 Accepts]: Start accepts. Automaton has 8856 states and 18157 transitions. Word has length 97 [2022-09-16 10:47:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:59,502 INFO L495 AbstractCegarLoop]: Abstraction has 8856 states and 18157 transitions. [2022-09-16 10:47:59,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8856 states and 18157 transitions. [2022-09-16 10:47:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:47:59,506 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:59,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:59,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-09-16 10:47:59,506 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:47:59,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1219196086, now seen corresponding path program 4 times [2022-09-16 10:47:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:59,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755040424] [2022-09-16 10:47:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:00,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:00,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755040424] [2022-09-16 10:48:00,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755040424] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:00,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:00,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:00,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490110865] [2022-09-16 10:48:00,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:00,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:00,016 INFO L87 Difference]: Start difference. First operand 8856 states and 18157 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:04,704 INFO L93 Difference]: Finished difference Result 14345 states and 29361 transitions. [2022-09-16 10:48:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:48:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:04,721 INFO L225 Difference]: With dead ends: 14345 [2022-09-16 10:48:04,721 INFO L226 Difference]: Without dead ends: 14345 [2022-09-16 10:48:04,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1182, Invalid=5138, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:48:04,722 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1897 mSDsluCounter, 8082 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 8639 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:04,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1897 Valid, 8639 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2022-09-16 10:48:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 8412. [2022-09-16 10:48:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8412 states, 8406 states have (on average 2.0519866761836782) internal successors, (17249), 8411 states have internal predecessors, (17249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8412 states to 8412 states and 17249 transitions. [2022-09-16 10:48:04,823 INFO L78 Accepts]: Start accepts. Automaton has 8412 states and 17249 transitions. Word has length 97 [2022-09-16 10:48:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:04,823 INFO L495 AbstractCegarLoop]: Abstraction has 8412 states and 17249 transitions. [2022-09-16 10:48:04,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 8412 states and 17249 transitions. [2022-09-16 10:48:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:04,826 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:04,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:04,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-09-16 10:48:04,826 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:04,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:04,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1070414910, now seen corresponding path program 5 times [2022-09-16 10:48:04,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:04,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541502989] [2022-09-16 10:48:04,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:05,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:05,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541502989] [2022-09-16 10:48:05,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541502989] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:05,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:05,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:05,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039119710] [2022-09-16 10:48:05,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:05,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:05,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:05,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:05,219 INFO L87 Difference]: Start difference. First operand 8412 states and 17249 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:08,267 INFO L93 Difference]: Finished difference Result 13552 states and 27778 transitions. [2022-09-16 10:48:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-09-16 10:48:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:08,283 INFO L225 Difference]: With dead ends: 13552 [2022-09-16 10:48:08,283 INFO L226 Difference]: Without dead ends: 13552 [2022-09-16 10:48:08,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=825, Invalid=3465, Unknown=0, NotChecked=0, Total=4290 [2022-09-16 10:48:08,284 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1655 mSDsluCounter, 5128 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:08,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 5579 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13552 states. [2022-09-16 10:48:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13552 to 8920. [2022-09-16 10:48:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8914 states have (on average 2.051716401166704) internal successors, (18289), 8919 states have internal predecessors, (18289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 18289 transitions. [2022-09-16 10:48:08,416 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 18289 transitions. Word has length 97 [2022-09-16 10:48:08,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:08,417 INFO L495 AbstractCegarLoop]: Abstraction has 8920 states and 18289 transitions. [2022-09-16 10:48:08,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 18289 transitions. [2022-09-16 10:48:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:08,420 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:08,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:08,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-09-16 10:48:08,421 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:08,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash 503126522, now seen corresponding path program 6 times [2022-09-16 10:48:08,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:08,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324752780] [2022-09-16 10:48:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:09,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:09,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324752780] [2022-09-16 10:48:09,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324752780] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:09,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:09,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:09,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689039029] [2022-09-16 10:48:09,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:09,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:09,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:09,006 INFO L87 Difference]: Start difference. First operand 8920 states and 18289 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:14,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:14,011 INFO L93 Difference]: Finished difference Result 14610 states and 29909 transitions. [2022-09-16 10:48:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:48:14,012 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:14,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:14,026 INFO L225 Difference]: With dead ends: 14610 [2022-09-16 10:48:14,027 INFO L226 Difference]: Without dead ends: 14610 [2022-09-16 10:48:14,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1244, Invalid=5398, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:48:14,027 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 2089 mSDsluCounter, 7545 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 8009 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:14,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 8009 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-09-16 10:48:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14610 states. [2022-09-16 10:48:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14610 to 8860. [2022-09-16 10:48:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8860 states, 8854 states have (on average 2.0520668624350575) internal successors, (18169), 8859 states have internal predecessors, (18169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8860 states to 8860 states and 18169 transitions. [2022-09-16 10:48:14,132 INFO L78 Accepts]: Start accepts. Automaton has 8860 states and 18169 transitions. Word has length 97 [2022-09-16 10:48:14,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:14,132 INFO L495 AbstractCegarLoop]: Abstraction has 8860 states and 18169 transitions. [2022-09-16 10:48:14,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8860 states and 18169 transitions. [2022-09-16 10:48:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:14,136 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:14,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:14,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-09-16 10:48:14,136 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash 568567388, now seen corresponding path program 7 times [2022-09-16 10:48:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649899907] [2022-09-16 10:48:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:14,631 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 10:48:14,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:14,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649899907] [2022-09-16 10:48:14,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649899907] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:14,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:14,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:14,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968471655] [2022-09-16 10:48:14,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:14,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:14,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:14,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:14,633 INFO L87 Difference]: Start difference. First operand 8860 states and 18169 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:19,649 INFO L93 Difference]: Finished difference Result 15032 states and 30772 transitions. [2022-09-16 10:48:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:48:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:19,668 INFO L225 Difference]: With dead ends: 15032 [2022-09-16 10:48:19,668 INFO L226 Difference]: Without dead ends: 15032 [2022-09-16 10:48:19,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1182, Invalid=5138, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:48:19,669 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 1693 mSDsluCounter, 8894 mSDsCounter, 0 mSdLazyCounter, 3185 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 9478 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:19,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 9478 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3185 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:48:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15032 states. [2022-09-16 10:48:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15032 to 8419. [2022-09-16 10:48:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8419 states, 8413 states have (on average 2.051943420896232) internal successors, (17263), 8418 states have internal predecessors, (17263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8419 states to 8419 states and 17263 transitions. [2022-09-16 10:48:19,792 INFO L78 Accepts]: Start accepts. Automaton has 8419 states and 17263 transitions. Word has length 97 [2022-09-16 10:48:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:19,792 INFO L495 AbstractCegarLoop]: Abstraction has 8419 states and 17263 transitions. [2022-09-16 10:48:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 8419 states and 17263 transitions. [2022-09-16 10:48:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:19,796 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:19,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:19,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-09-16 10:48:19,797 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:19,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 777206552, now seen corresponding path program 8 times [2022-09-16 10:48:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:19,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158379510] [2022-09-16 10:48:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:20,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158379510] [2022-09-16 10:48:20,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158379510] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:20,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:20,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441815198] [2022-09-16 10:48:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:20,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:20,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:20,211 INFO L87 Difference]: Start difference. First operand 8419 states and 17263 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:24,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:24,308 INFO L93 Difference]: Finished difference Result 13658 states and 28006 transitions. [2022-09-16 10:48:24,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:48:24,308 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:24,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:24,321 INFO L225 Difference]: With dead ends: 13658 [2022-09-16 10:48:24,322 INFO L226 Difference]: Without dead ends: 13658 [2022-09-16 10:48:24,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1085, Invalid=4317, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:48:24,322 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 1966 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:24,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 5934 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13658 states. [2022-09-16 10:48:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13658 to 8464. [2022-09-16 10:48:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:48:24,420 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:48:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:24,420 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:48:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:48:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:24,424 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:24,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:24,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-09-16 10:48:24,424 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:24,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:24,425 INFO L85 PathProgramCache]: Analyzing trace with hash -646175106, now seen corresponding path program 9 times [2022-09-16 10:48:24,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:24,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309291912] [2022-09-16 10:48:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:24,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309291912] [2022-09-16 10:48:24,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309291912] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:24,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:24,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485305155] [2022-09-16 10:48:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:24,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:24,865 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:30,826 INFO L93 Difference]: Finished difference Result 15035 states and 30809 transitions. [2022-09-16 10:48:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-16 10:48:30,827 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:30,846 INFO L225 Difference]: With dead ends: 15035 [2022-09-16 10:48:30,846 INFO L226 Difference]: Without dead ends: 15035 [2022-09-16 10:48:30,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1728 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1457, Invalid=6199, Unknown=0, NotChecked=0, Total=7656 [2022-09-16 10:48:30,847 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 1920 mSDsluCounter, 6589 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 7120 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:30,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 7120 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-09-16 10:48:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-09-16 10:48:30,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 8832. [2022-09-16 10:48:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8832 states, 8826 states have (on average 2.052458644912758) internal successors, (18115), 8831 states have internal predecessors, (18115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:30,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 18115 transitions. [2022-09-16 10:48:30,969 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 18115 transitions. Word has length 97 [2022-09-16 10:48:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:30,969 INFO L495 AbstractCegarLoop]: Abstraction has 8832 states and 18115 transitions. [2022-09-16 10:48:30,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 18115 transitions. [2022-09-16 10:48:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:30,973 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:30,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:30,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-09-16 10:48:30,974 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:30,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash -636512120, now seen corresponding path program 10 times [2022-09-16 10:48:30,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:30,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979332435] [2022-09-16 10:48:30,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:31,463 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 10:48:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:31,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979332435] [2022-09-16 10:48:31,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979332435] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:31,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:31,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:31,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797445409] [2022-09-16 10:48:31,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:31,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:31,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:31,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:31,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:31,465 INFO L87 Difference]: Start difference. First operand 8832 states and 18115 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:35,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:35,878 INFO L93 Difference]: Finished difference Result 13677 states and 27987 transitions. [2022-09-16 10:48:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-16 10:48:35,878 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:35,893 INFO L225 Difference]: With dead ends: 13677 [2022-09-16 10:48:35,893 INFO L226 Difference]: Without dead ends: 13677 [2022-09-16 10:48:35,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1133, Invalid=4719, Unknown=0, NotChecked=0, Total=5852 [2022-09-16 10:48:35,894 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 1880 mSDsluCounter, 7284 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:35,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 7804 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:48:35,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13677 states. [2022-09-16 10:48:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13677 to 8464. [2022-09-16 10:48:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:35,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:48:35,997 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:48:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:35,997 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:48:35,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:48:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:36,001 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:36,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:36,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-09-16 10:48:36,001 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:36,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:36,001 INFO L85 PathProgramCache]: Analyzing trace with hash -680956956, now seen corresponding path program 11 times [2022-09-16 10:48:36,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:36,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244139235] [2022-09-16 10:48:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:36,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:36,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:36,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244139235] [2022-09-16 10:48:36,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244139235] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:36,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:36,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783512076] [2022-09-16 10:48:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:36,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:36,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:36,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:36,434 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:40,251 INFO L93 Difference]: Finished difference Result 13372 states and 27416 transitions. [2022-09-16 10:48:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-09-16 10:48:40,251 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:40,266 INFO L225 Difference]: With dead ends: 13372 [2022-09-16 10:48:40,266 INFO L226 Difference]: Without dead ends: 13372 [2022-09-16 10:48:40,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=938, Invalid=3892, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:48:40,266 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1699 mSDsluCounter, 6024 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 6478 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:40,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 6478 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:48:40,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13372 states. [2022-09-16 10:48:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13372 to 8870. [2022-09-16 10:48:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8870 states, 8864 states have (on average 2.0522337545126352) internal successors, (18191), 8869 states have internal predecessors, (18191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8870 states to 8870 states and 18191 transitions. [2022-09-16 10:48:40,374 INFO L78 Accepts]: Start accepts. Automaton has 8870 states and 18191 transitions. Word has length 97 [2022-09-16 10:48:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:40,374 INFO L495 AbstractCegarLoop]: Abstraction has 8870 states and 18191 transitions. [2022-09-16 10:48:40,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8870 states and 18191 transitions. [2022-09-16 10:48:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:40,378 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:40,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:40,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-09-16 10:48:40,379 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash -671293970, now seen corresponding path program 12 times [2022-09-16 10:48:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:40,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437202456] [2022-09-16 10:48:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:40,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:40,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:40,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437202456] [2022-09-16 10:48:40,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437202456] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:40,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:40,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618460758] [2022-09-16 10:48:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:40,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:40,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:40,859 INFO L87 Difference]: Start difference. First operand 8870 states and 18191 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:45,568 INFO L93 Difference]: Finished difference Result 14104 states and 28872 transitions. [2022-09-16 10:48:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:48:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:45,583 INFO L225 Difference]: With dead ends: 14104 [2022-09-16 10:48:45,583 INFO L226 Difference]: Without dead ends: 14104 [2022-09-16 10:48:45,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1276, Invalid=5366, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:48:45,584 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 2155 mSDsluCounter, 6782 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 7280 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:45,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 7280 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:48:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14104 states. [2022-09-16 10:48:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14104 to 8464. [2022-09-16 10:48:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:48:45,692 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:48:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:45,692 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:48:45,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:48:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:45,696 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:45,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:45,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-09-16 10:48:45,696 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1352311426, now seen corresponding path program 13 times [2022-09-16 10:48:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:45,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471707906] [2022-09-16 10:48:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:45,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:46,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:46,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471707906] [2022-09-16 10:48:46,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471707906] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:46,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:46,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:48:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119403179] [2022-09-16 10:48:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:48:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:46,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:48:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:48:46,105 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:49,546 INFO L93 Difference]: Finished difference Result 13619 states and 27910 transitions. [2022-09-16 10:48:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:48:49,547 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:49,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:49,563 INFO L225 Difference]: With dead ends: 13619 [2022-09-16 10:48:49,563 INFO L226 Difference]: Without dead ends: 13619 [2022-09-16 10:48:49,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=883, Invalid=3673, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:48:49,564 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1748 mSDsluCounter, 5504 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 5977 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:49,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 5977 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:48:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13619 states. [2022-09-16 10:48:49,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13619 to 8984. [2022-09-16 10:48:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8978 states have (on average 2.0515705056805524) internal successors, (18419), 8983 states have internal predecessors, (18419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 18419 transitions. [2022-09-16 10:48:49,698 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 18419 transitions. Word has length 97 [2022-09-16 10:48:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:49,698 INFO L495 AbstractCegarLoop]: Abstraction has 8984 states and 18419 transitions. [2022-09-16 10:48:49,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 18419 transitions. [2022-09-16 10:48:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:49,702 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:49,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:49,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-09-16 10:48:49,702 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash 221230006, now seen corresponding path program 14 times [2022-09-16 10:48:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:49,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351292330] [2022-09-16 10:48:49,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:49,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:50,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:50,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351292330] [2022-09-16 10:48:50,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351292330] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:50,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:50,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:50,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852791610] [2022-09-16 10:48:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:50,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:50,218 INFO L87 Difference]: Start difference. First operand 8984 states and 18419 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:55,084 INFO L93 Difference]: Finished difference Result 14941 states and 30581 transitions. [2022-09-16 10:48:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:48:55,084 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:48:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:55,099 INFO L225 Difference]: With dead ends: 14941 [2022-09-16 10:48:55,099 INFO L226 Difference]: Without dead ends: 14941 [2022-09-16 10:48:55,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1245, Invalid=5397, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:48:55,100 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2111 mSDsluCounter, 5953 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 6435 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:55,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 6435 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:48:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14941 states. [2022-09-16 10:48:55,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14941 to 8984. [2022-09-16 10:48:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8978 states have (on average 2.0515705056805524) internal successors, (18419), 8983 states have internal predecessors, (18419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 18419 transitions. [2022-09-16 10:48:55,207 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 18419 transitions. Word has length 97 [2022-09-16 10:48:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:55,208 INFO L495 AbstractCegarLoop]: Abstraction has 8984 states and 18419 transitions. [2022-09-16 10:48:55,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:48:55,208 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 18419 transitions. [2022-09-16 10:48:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:48:55,211 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:55,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:55,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-09-16 10:48:55,212 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:48:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:55,212 INFO L85 PathProgramCache]: Analyzing trace with hash 286670872, now seen corresponding path program 15 times [2022-09-16 10:48:55,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:55,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279949101] [2022-09-16 10:48:55,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:55,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:48:55,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:55,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279949101] [2022-09-16 10:48:55,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279949101] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:55,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:55,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:48:55,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306926045] [2022-09-16 10:48:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:55,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:48:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:55,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:48:55,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:48:55,717 INFO L87 Difference]: Start difference. First operand 8984 states and 18419 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:00,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:00,094 INFO L93 Difference]: Finished difference Result 15237 states and 31183 transitions. [2022-09-16 10:49:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-09-16 10:49:00,094 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:00,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:00,110 INFO L225 Difference]: With dead ends: 15237 [2022-09-16 10:49:00,110 INFO L226 Difference]: Without dead ends: 15237 [2022-09-16 10:49:00,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1010, Invalid=4392, Unknown=0, NotChecked=0, Total=5402 [2022-09-16 10:49:00,111 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1659 mSDsluCounter, 9087 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 9689 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:00,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 9689 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:49:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15237 states. [2022-09-16 10:49:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15237 to 8464. [2022-09-16 10:49:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:49:00,215 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:49:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:00,215 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:49:00,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:49:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:00,218 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:00,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:00,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-09-16 10:49:00,218 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:00,219 INFO L85 PathProgramCache]: Analyzing trace with hash -542084208, now seen corresponding path program 16 times [2022-09-16 10:49:00,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:00,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138442188] [2022-09-16 10:49:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:00,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:00,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138442188] [2022-09-16 10:49:00,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138442188] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:00,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:00,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75061911] [2022-09-16 10:49:00,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:00,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:00,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:00,608 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:03,448 INFO L93 Difference]: Finished difference Result 13735 states and 28145 transitions. [2022-09-16 10:49:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:49:03,449 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:03,468 INFO L225 Difference]: With dead ends: 13735 [2022-09-16 10:49:03,469 INFO L226 Difference]: Without dead ends: 13735 [2022-09-16 10:49:03,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=772, Invalid=3260, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:49:03,470 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 1617 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:03,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 6309 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:49:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13735 states. [2022-09-16 10:49:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13735 to 9003. [2022-09-16 10:49:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8997 states have (on average 2.051461598310548) internal successors, (18457), 9002 states have internal predecessors, (18457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 18457 transitions. [2022-09-16 10:49:03,585 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 18457 transitions. Word has length 97 [2022-09-16 10:49:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:03,585 INFO L495 AbstractCegarLoop]: Abstraction has 9003 states and 18457 transitions. [2022-09-16 10:49:03,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 18457 transitions. [2022-09-16 10:49:03,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:03,589 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:03,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:03,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-09-16 10:49:03,589 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1031457224, now seen corresponding path program 17 times [2022-09-16 10:49:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:03,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801511760] [2022-09-16 10:49:03,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:03,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:04,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:04,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801511760] [2022-09-16 10:49:04,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801511760] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:04,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:04,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:04,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424553602] [2022-09-16 10:49:04,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:04,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:04,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:04,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:04,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:04,245 INFO L87 Difference]: Start difference. First operand 9003 states and 18457 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:09,011 INFO L93 Difference]: Finished difference Result 14979 states and 30657 transitions. [2022-09-16 10:49:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:49:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:09,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:09,029 INFO L225 Difference]: With dead ends: 14979 [2022-09-16 10:49:09,030 INFO L226 Difference]: Without dead ends: 14979 [2022-09-16 10:49:09,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1245, Invalid=5397, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:49:09,031 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 2087 mSDsluCounter, 5980 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:09,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2087 Valid, 6464 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14979 states. [2022-09-16 10:49:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14979 to 9003. [2022-09-16 10:49:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8997 states have (on average 2.051461598310548) internal successors, (18457), 9002 states have internal predecessors, (18457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 18457 transitions. [2022-09-16 10:49:09,179 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 18457 transitions. Word has length 97 [2022-09-16 10:49:09,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:09,179 INFO L495 AbstractCegarLoop]: Abstraction has 9003 states and 18457 transitions. [2022-09-16 10:49:09,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 18457 transitions. [2022-09-16 10:49:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:09,183 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:09,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:09,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-09-16 10:49:09,183 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:09,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:09,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1096898090, now seen corresponding path program 18 times [2022-09-16 10:49:09,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:09,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742904798] [2022-09-16 10:49:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:09,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:09,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:09,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742904798] [2022-09-16 10:49:09,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742904798] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:09,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:09,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442550778] [2022-09-16 10:49:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:09,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:09,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:09,779 INFO L87 Difference]: Start difference. First operand 9003 states and 18457 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:14,508 INFO L93 Difference]: Finished difference Result 15275 states and 31259 transitions. [2022-09-16 10:49:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:49:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:14,568 INFO L225 Difference]: With dead ends: 15275 [2022-09-16 10:49:14,568 INFO L226 Difference]: Without dead ends: 15275 [2022-09-16 10:49:14,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1182, Invalid=5138, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:49:14,569 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1774 mSDsluCounter, 7903 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 8507 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:14,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 8507 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:49:14,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15275 states. [2022-09-16 10:49:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15275 to 8464. [2022-09-16 10:49:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:49:14,659 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:49:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:14,659 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:49:14,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:49:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:14,662 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:14,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:14,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-09-16 10:49:14,663 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1169287770, now seen corresponding path program 19 times [2022-09-16 10:49:14,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:14,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966841007] [2022-09-16 10:49:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:14,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:15,058 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 10:49:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:15,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966841007] [2022-09-16 10:49:15,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966841007] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:15,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:15,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:15,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479934100] [2022-09-16 10:49:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:15,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:15,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:15,059 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:17,530 INFO L93 Difference]: Finished difference Result 12956 states and 26549 transitions. [2022-09-16 10:49:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 10:49:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:17,546 INFO L225 Difference]: With dead ends: 12956 [2022-09-16 10:49:17,546 INFO L226 Difference]: Without dead ends: 12956 [2022-09-16 10:49:17,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=698, Invalid=2962, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:49:17,547 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1584 mSDsluCounter, 4658 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:17,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 5108 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:49:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12956 states. [2022-09-16 10:49:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12956 to 9060. [2022-09-16 10:49:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9054 states have (on average 2.051137618732052) internal successors, (18571), 9059 states have internal predecessors, (18571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 18571 transitions. [2022-09-16 10:49:17,650 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 18571 transitions. Word has length 97 [2022-09-16 10:49:17,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:17,651 INFO L495 AbstractCegarLoop]: Abstraction has 9060 states and 18571 transitions. [2022-09-16 10:49:17,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:17,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 18571 transitions. [2022-09-16 10:49:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:17,654 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:17,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:17,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-09-16 10:49:17,655 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash 404253662, now seen corresponding path program 20 times [2022-09-16 10:49:17,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:17,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999237086] [2022-09-16 10:49:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:18,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:18,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999237086] [2022-09-16 10:49:18,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999237086] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:18,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:18,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:18,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575611051] [2022-09-16 10:49:18,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:18,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:18,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:18,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:18,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:18,175 INFO L87 Difference]: Start difference. First operand 9060 states and 18571 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:22,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:22,529 INFO L93 Difference]: Finished difference Result 14263 states and 29184 transitions. [2022-09-16 10:49:22,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:49:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:22,548 INFO L225 Difference]: With dead ends: 14263 [2022-09-16 10:49:22,548 INFO L226 Difference]: Without dead ends: 14263 [2022-09-16 10:49:22,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1171, Invalid=4991, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:49:22,549 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 2223 mSDsluCounter, 5001 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:22,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 5470 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:49:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14263 states. [2022-09-16 10:49:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14263 to 9060. [2022-09-16 10:49:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9054 states have (on average 2.051137618732052) internal successors, (18571), 9059 states have internal predecessors, (18571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 18571 transitions. [2022-09-16 10:49:22,664 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 18571 transitions. Word has length 97 [2022-09-16 10:49:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:22,665 INFO L495 AbstractCegarLoop]: Abstraction has 9060 states and 18571 transitions. [2022-09-16 10:49:22,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 18571 transitions. [2022-09-16 10:49:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:22,669 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:22,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:22,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-09-16 10:49:22,669 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:22,669 INFO L85 PathProgramCache]: Analyzing trace with hash 997678238, now seen corresponding path program 21 times [2022-09-16 10:49:22,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:22,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266473419] [2022-09-16 10:49:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:23,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:23,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266473419] [2022-09-16 10:49:23,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266473419] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:23,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:23,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:23,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002990966] [2022-09-16 10:49:23,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:23,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:23,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:23,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:23,191 INFO L87 Difference]: Start difference. First operand 9060 states and 18571 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:27,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:27,652 INFO L93 Difference]: Finished difference Result 15371 states and 31469 transitions. [2022-09-16 10:49:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:49:27,652 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:27,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:27,673 INFO L225 Difference]: With dead ends: 15371 [2022-09-16 10:49:27,673 INFO L226 Difference]: Without dead ends: 15371 [2022-09-16 10:49:27,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1172, Invalid=4990, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:49:27,674 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 2203 mSDsluCounter, 6447 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 6933 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:27,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 6933 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15371 states. [2022-09-16 10:49:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15371 to 9060. [2022-09-16 10:49:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9054 states have (on average 2.051137618732052) internal successors, (18571), 9059 states have internal predecessors, (18571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 18571 transitions. [2022-09-16 10:49:27,801 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 18571 transitions. Word has length 97 [2022-09-16 10:49:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:27,801 INFO L495 AbstractCegarLoop]: Abstraction has 9060 states and 18571 transitions. [2022-09-16 10:49:27,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 18571 transitions. [2022-09-16 10:49:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:27,805 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:27,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:27,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-09-16 10:49:27,806 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:27,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:27,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1063119104, now seen corresponding path program 22 times [2022-09-16 10:49:27,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:27,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511790732] [2022-09-16 10:49:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:28,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:28,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511790732] [2022-09-16 10:49:28,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511790732] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:28,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:28,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940697861] [2022-09-16 10:49:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:28,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:28,299 INFO L87 Difference]: Start difference. First operand 9060 states and 18571 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:33,032 INFO L93 Difference]: Finished difference Result 14571 states and 29813 transitions. [2022-09-16 10:49:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:49:33,032 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:33,049 INFO L225 Difference]: With dead ends: 14571 [2022-09-16 10:49:33,049 INFO L226 Difference]: Without dead ends: 14571 [2022-09-16 10:49:33,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1183, Invalid=5137, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:49:33,050 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 1875 mSDsluCounter, 8604 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 9200 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:33,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 9200 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:49:33,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14571 states. [2022-09-16 10:49:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14571 to 8464. [2022-09-16 10:49:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8458 states have (on average 2.0519035232915583) internal successors, (17355), 8463 states have internal predecessors, (17355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:33,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 17355 transitions. [2022-09-16 10:49:33,154 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 17355 transitions. Word has length 97 [2022-09-16 10:49:33,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:33,154 INFO L495 AbstractCegarLoop]: Abstraction has 8464 states and 17355 transitions. [2022-09-16 10:49:33,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 17355 transitions. [2022-09-16 10:49:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:33,158 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:33,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:33,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-09-16 10:49:33,158 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash 162223156, now seen corresponding path program 23 times [2022-09-16 10:49:33,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:33,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027445550] [2022-09-16 10:49:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:33,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:33,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027445550] [2022-09-16 10:49:33,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027445550] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:33,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:33,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:33,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583977375] [2022-09-16 10:49:33,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:33,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:33,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:33,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:33,596 INFO L87 Difference]: Start difference. First operand 8464 states and 17355 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:36,734 INFO L93 Difference]: Finished difference Result 12821 states and 26276 transitions. [2022-09-16 10:49:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-09-16 10:49:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:36,751 INFO L225 Difference]: With dead ends: 12821 [2022-09-16 10:49:36,751 INFO L226 Difference]: Without dead ends: 12821 [2022-09-16 10:49:36,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=779, Invalid=3253, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:49:36,752 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1801 mSDsluCounter, 5569 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:36,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 6010 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:49:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12821 states. [2022-09-16 10:49:36,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12821 to 9003. [2022-09-16 10:49:36,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8997 states have (on average 2.051461598310548) internal successors, (18457), 9002 states have internal predecessors, (18457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 18457 transitions. [2022-09-16 10:49:36,875 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 18457 transitions. Word has length 97 [2022-09-16 10:49:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:36,875 INFO L495 AbstractCegarLoop]: Abstraction has 9003 states and 18457 transitions. [2022-09-16 10:49:36,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:36,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 18457 transitions. [2022-09-16 10:49:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:36,879 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:36,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:36,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-09-16 10:49:36,880 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1735764588, now seen corresponding path program 24 times [2022-09-16 10:49:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:36,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841068493] [2022-09-16 10:49:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:37,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:37,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841068493] [2022-09-16 10:49:37,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841068493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:37,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:37,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:37,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427953816] [2022-09-16 10:49:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:37,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:37,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:37,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:37,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:37,419 INFO L87 Difference]: Start difference. First operand 9003 states and 18457 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:42,323 INFO L93 Difference]: Finished difference Result 14098 states and 28848 transitions. [2022-09-16 10:49:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:49:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:42,343 INFO L225 Difference]: With dead ends: 14098 [2022-09-16 10:49:42,343 INFO L226 Difference]: Without dead ends: 14098 [2022-09-16 10:49:42,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1396 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1243, Invalid=5399, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:49:42,344 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 2116 mSDsluCounter, 5973 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 6433 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:42,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 6433 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:42,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14098 states. [2022-09-16 10:49:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14098 to 8967. [2022-09-16 10:49:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8967 states, 8961 states have (on average 2.051668340586988) internal successors, (18385), 8966 states have internal predecessors, (18385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8967 states to 8967 states and 18385 transitions. [2022-09-16 10:49:42,469 INFO L78 Accepts]: Start accepts. Automaton has 8967 states and 18385 transitions. Word has length 97 [2022-09-16 10:49:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:42,469 INFO L495 AbstractCegarLoop]: Abstraction has 8967 states and 18385 transitions. [2022-09-16 10:49:42,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:42,469 INFO L276 IsEmpty]: Start isEmpty. Operand 8967 states and 18385 transitions. [2022-09-16 10:49:42,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:42,473 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:42,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:42,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-09-16 10:49:42,473 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:42,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1965778132, now seen corresponding path program 25 times [2022-09-16 10:49:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:42,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156111300] [2022-09-16 10:49:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:43,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:43,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156111300] [2022-09-16 10:49:43,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156111300] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:43,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:43,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:43,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7578314] [2022-09-16 10:49:43,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:43,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:43,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:43,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:43,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:43,049 INFO L87 Difference]: Start difference. First operand 8967 states and 18385 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:47,540 INFO L93 Difference]: Finished difference Result 15278 states and 31283 transitions. [2022-09-16 10:49:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-09-16 10:49:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:47,562 INFO L225 Difference]: With dead ends: 15278 [2022-09-16 10:49:47,562 INFO L226 Difference]: Without dead ends: 15278 [2022-09-16 10:49:47,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1170, Invalid=4992, Unknown=0, NotChecked=0, Total=6162 [2022-09-16 10:49:47,563 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 2317 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:47,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 6035 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15278 states. [2022-09-16 10:49:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15278 to 8967. [2022-09-16 10:49:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8967 states, 8961 states have (on average 2.051668340586988) internal successors, (18385), 8966 states have internal predecessors, (18385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8967 states to 8967 states and 18385 transitions. [2022-09-16 10:49:47,697 INFO L78 Accepts]: Start accepts. Automaton has 8967 states and 18385 transitions. Word has length 97 [2022-09-16 10:49:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:47,697 INFO L495 AbstractCegarLoop]: Abstraction has 8967 states and 18385 transitions. [2022-09-16 10:49:47,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:47,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8967 states and 18385 transitions. [2022-09-16 10:49:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:47,701 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:47,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:47,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-09-16 10:49:47,702 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:47,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:47,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1900337266, now seen corresponding path program 26 times [2022-09-16 10:49:47,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:47,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557981921] [2022-09-16 10:49:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:48,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:48,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557981921] [2022-09-16 10:49:48,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557981921] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:48,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:48,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560359910] [2022-09-16 10:49:48,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:48,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:48,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:48,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:48,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:48,205 INFO L87 Difference]: Start difference. First operand 8967 states and 18385 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:52,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:52,739 INFO L93 Difference]: Finished difference Result 14478 states and 29627 transitions. [2022-09-16 10:49:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-09-16 10:49:52,740 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:52,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:52,757 INFO L225 Difference]: With dead ends: 14478 [2022-09-16 10:49:52,757 INFO L226 Difference]: Without dead ends: 14478 [2022-09-16 10:49:52,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1181, Invalid=5139, Unknown=0, NotChecked=0, Total=6320 [2022-09-16 10:49:52,758 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1827 mSDsluCounter, 6666 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:52,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 7253 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:49:52,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14478 states. [2022-09-16 10:49:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14478 to 8407. [2022-09-16 10:49:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8407 states, 8401 states have (on average 2.052255683847161) internal successors, (17241), 8406 states have internal predecessors, (17241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:52,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8407 states to 8407 states and 17241 transitions. [2022-09-16 10:49:52,873 INFO L78 Accepts]: Start accepts. Automaton has 8407 states and 17241 transitions. Word has length 97 [2022-09-16 10:49:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:52,873 INFO L495 AbstractCegarLoop]: Abstraction has 8407 states and 17241 transitions. [2022-09-16 10:49:52,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8407 states and 17241 transitions. [2022-09-16 10:49:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:52,877 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:52,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:52,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-09-16 10:49:52,877 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:52,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1751556090, now seen corresponding path program 27 times [2022-09-16 10:49:52,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:52,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922085432] [2022-09-16 10:49:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:49:53,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:53,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922085432] [2022-09-16 10:49:53,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922085432] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:53,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:53,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-09-16 10:49:53,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599877823] [2022-09-16 10:49:53,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:53,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:49:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:49:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:49:53,286 INFO L87 Difference]: Start difference. First operand 8407 states and 17241 transitions. Second operand has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:56,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:49:56,923 INFO L93 Difference]: Finished difference Result 13868 states and 28428 transitions. [2022-09-16 10:49:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:49:56,923 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:49:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:49:56,942 INFO L225 Difference]: With dead ends: 13868 [2022-09-16 10:49:56,942 INFO L226 Difference]: Without dead ends: 13868 [2022-09-16 10:49:56,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=884, Invalid=3672, Unknown=0, NotChecked=0, Total=4556 [2022-09-16 10:49:56,943 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 1659 mSDsluCounter, 6228 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:49:56,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 6692 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:49:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13868 states. [2022-09-16 10:49:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13868 to 8915. [2022-09-16 10:49:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8909 states have (on average 2.0519699180603883) internal successors, (18281), 8914 states have internal predecessors, (18281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 18281 transitions. [2022-09-16 10:49:57,071 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 18281 transitions. Word has length 97 [2022-09-16 10:49:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:49:57,071 INFO L495 AbstractCegarLoop]: Abstraction has 8915 states and 18281 transitions. [2022-09-16 10:49:57,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.88) internal successors, (97), 26 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:49:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 18281 transitions. [2022-09-16 10:49:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:49:57,075 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:49:57,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:49:57,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-09-16 10:49:57,076 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:49:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:49:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash -178014658, now seen corresponding path program 28 times [2022-09-16 10:49:57,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:49:57,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245258613] [2022-09-16 10:49:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:49:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:49:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:49:57,648 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 10:49:57,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:49:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245258613] [2022-09-16 10:49:57,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245258613] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:49:57,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:49:57,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:49:57,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073205162] [2022-09-16 10:49:57,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:49:57,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:49:57,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:49:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:49:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:49:57,650 INFO L87 Difference]: Start difference. First operand 8915 states and 18281 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:02,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:50:02,590 INFO L93 Difference]: Finished difference Result 15004 states and 30718 transitions. [2022-09-16 10:50:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-09-16 10:50:02,590 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:50:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:50:02,607 INFO L225 Difference]: With dead ends: 15004 [2022-09-16 10:50:02,608 INFO L226 Difference]: Without dead ends: 15004 [2022-09-16 10:50:02,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1396 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1243, Invalid=5399, Unknown=0, NotChecked=0, Total=6642 [2022-09-16 10:50:02,609 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 2030 mSDsluCounter, 7114 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 7593 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:02,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 7593 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:50:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15004 states. [2022-09-16 10:50:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15004 to 8855. [2022-09-16 10:50:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8855 states, 8849 states have (on average 2.0523222963046672) internal successors, (18161), 8854 states have internal predecessors, (18161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8855 states to 8855 states and 18161 transitions. [2022-09-16 10:50:02,741 INFO L78 Accepts]: Start accepts. Automaton has 8855 states and 18161 transitions. Word has length 97 [2022-09-16 10:50:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:50:02,741 INFO L495 AbstractCegarLoop]: Abstraction has 8855 states and 18161 transitions. [2022-09-16 10:50:02,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8855 states and 18161 transitions. [2022-09-16 10:50:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:50:02,746 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:02,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-09-16 10:50:02,746 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-09-16 10:50:02,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -112573792, now seen corresponding path program 29 times [2022-09-16 10:50:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:02,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696596926] [2022-09-16 10:50:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:02,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:50:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:50:03,272 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 10:50:03,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:50:03,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696596926] [2022-09-16 10:50:03,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696596926] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:50:03,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:50:03,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-09-16 10:50:03,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132018259] [2022-09-16 10:50:03,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:50:03,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-09-16 10:50:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:50:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-09-16 10:50:03,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2022-09-16 10:50:03,273 INFO L87 Difference]: Start difference. First operand 8855 states and 18161 transitions. Second operand has 29 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 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 10:50:06,230 WARN L249 SmtUtils]: Removed 14 from assertion stack [2022-09-16 10:50:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-16 10:50:06,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=661, Invalid=2645, Unknown=0, NotChecked=0, Total=3306 [2022-09-16 10:50:06,231 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1063 mSDsluCounter, 4962 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 10:50:06,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 5326 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 10:50:06,232 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2022-09-16 10:50:06,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-09-16 10:50:06,233 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-09-16 10:50:06,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-09-16 10:50:06,235 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-09-16 10:50:06,236 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-09-16 10:50:06,236 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-09-16 10:50:06,236 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location reader_fnErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-09-16 10:50:06,238 INFO L444 BasicCegarLoop]: Path program histogram: [84, 29, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:06,242 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:50:06,242 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:50:06,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:50:06 BasicIcfg [2022-09-16 10:50:06,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:50:06,243 INFO L158 Benchmark]: Toolchain (without parser) took 697066.65ms. Allocated memory was 179.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 123.5MB in the beginning and 764.4MB in the end (delta: -640.9MB). Peak memory consumption was 412.7MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,243 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 141.6MB in the beginning and 141.6MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.32ms. Allocated memory is still 179.3MB. Free memory was 123.2MB in the beginning and 142.5MB in the end (delta: -19.3MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.44ms. Allocated memory is still 179.3MB. Free memory was 142.1MB in the beginning and 139.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 INFO L158 Benchmark]: Boogie Preprocessor took 54.19ms. Allocated memory is still 179.3MB. Free memory was 139.8MB in the beginning and 137.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 INFO L158 Benchmark]: RCFGBuilder took 559.79ms. Allocated memory is still 179.3MB. Free memory was 137.9MB in the beginning and 120.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 INFO L158 Benchmark]: TraceAbstraction took 695842.77ms. Allocated memory was 179.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 119.5MB in the beginning and 764.4MB in the end (delta: -644.9MB). Peak memory consumption was 409.9MB. Max. memory is 8.0GB. [2022-09-16 10:50:06,244 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 10:50:06,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 141.6MB in the beginning and 141.6MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 522.32ms. Allocated memory is still 179.3MB. Free memory was 123.2MB in the beginning and 142.5MB in the end (delta: -19.3MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 79.44ms. Allocated memory is still 179.3MB. Free memory was 142.1MB in the beginning and 139.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.19ms. Allocated memory is still 179.3MB. Free memory was 139.8MB in the beginning and 137.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 559.79ms. Allocated memory is still 179.3MB. Free memory was 137.9MB in the beginning and 120.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 695842.77ms. Allocated memory was 179.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 119.5MB in the beginning and 764.4MB in the end (delta: -644.9MB). Peak memory consumption was 409.9MB. 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: 816]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 816]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 834]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 834]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 845]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 810]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 812]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 843]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was constructing difference of abstraction (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - TimeoutResultAtElement [Line: 854]: 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 (8855states) and FLOYD_HOARE automaton (currently 32 states, 29 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 68 for 47ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 254 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 695.7s, OverallIterations: 148, TraceHistogramMax: 2, PathProgramHistogramMax: 84, EmptinessCheckTime: 0.5s, AutomataDifference: 555.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271763 SdHoareTripleChecker+Valid, 133.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271763 mSDsluCounter, 948266 SdHoareTripleChecker+Invalid, 111.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 426 IncrementalHoareTripleChecker+Unchecked, 876362 mSDsCounter, 5664 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304824 IncrementalHoareTripleChecker+Invalid, 310914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5664 mSolverCounterUnsat, 71945 mSDtfsCounter, 304824 mSolverCounterSat, 2.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10708 GetRequests, 875 SyntacticMatches, 17 SemanticMatches, 9815 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142244 ImplicationChecksByTransitivity, 495.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13722occurred in iteration=12, InterpolantAutomatonStates: 6689, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.6s AutomataMinimizationTime, 147 MinimizatonAttempts, 731564 StatesRemovedByMinimization, 146 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 116.9s InterpolantComputationTime, 14197 NumberOfCodeBlocks, 14197 NumberOfCodeBlocksAsserted, 153 NumberOfCheckSat, 14382 ConstructedInterpolants, 34 QuantifiedInterpolants, 170944 SizeOfPredicates, 58 NumberOfNonLiveVariables, 957 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 157 InterpolantComputations, 144 PerfectInterpolantSequences, 50/194 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