/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/fib_safe-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:13:31,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:13:31,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:13:31,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:13:31,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:13:31,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:13:31,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:13:31,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:13:31,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:13:31,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:13:31,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:13:31,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:13:31,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:13:31,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:13:31,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:13:31,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:13:31,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:13:31,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:13:31,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:13:31,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:13:31,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:13:31,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:13:31,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:13:31,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:13:31,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:13:31,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:13:31,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:13:31,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:13:31,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:13:31,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:13:31,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:13:31,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:13:31,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:13:31,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:13:31,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:13:31,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:13:31,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:13:31,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:13:31,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:13:31,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:13:31,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:13:31,107 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 10:13:31,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:13:31,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:13:31,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:13:31,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:13:31,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:13:31,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:13:31,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:13:31,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:13:31,133 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:13:31,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:13:31,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:13:31,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:13:31,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:13:31,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:13:31,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:13:31,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:31,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:13:31,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:13:31,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:13:31,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:13:31,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:13:31,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:13:31,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:13:31,355 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:13:31,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-6.i [2022-09-16 10:13:31,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8c0e76e/c2acff48f65a43f9994097c65621da92/FLAG0c6629227 [2022-09-16 10:13:31,806 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:13:31,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-6.i [2022-09-16 10:13:31,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8c0e76e/c2acff48f65a43f9994097c65621da92/FLAG0c6629227 [2022-09-16 10:13:31,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8c0e76e/c2acff48f65a43f9994097c65621da92 [2022-09-16 10:13:31,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:13:31,827 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:13:31,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:31,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:13:31,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:13:31,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:31" (1/1) ... [2022-09-16 10:13:31,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5042a3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:31, skipping insertion in model container [2022-09-16 10:13:31,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:31" (1/1) ... [2022-09-16 10:13:31,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:13:31,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:13:32,127 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/fib_safe-6.i[30813,30826] [2022-09-16 10:13:32,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:32,133 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:13:32,165 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/fib_safe-6.i[30813,30826] [2022-09-16 10:13:32,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:32,195 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:13:32,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32 WrapperNode [2022-09-16 10:13:32,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:32,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:32,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:13:32,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:13:32,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,243 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-09-16 10:13:32,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:32,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:13:32,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:13:32,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:13:32,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:13:32,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:13:32,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:13:32,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:13:32,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:32,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:32,299 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 10:13:32,300 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 10:13:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-16 10:13:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-16 10:13:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-16 10:13:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:13:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:13:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:13:32,324 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 10:13:32,451 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:13:32,452 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:13:32,601 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:13:32,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:13:32,618 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:13:32,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:13:32 BoogieIcfgContainer [2022-09-16 10:13:32,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:13:32,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:13:32,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:13:32,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:13:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:13:31" (1/3) ... [2022-09-16 10:13:32,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a9ecf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:13:32, skipping insertion in model container [2022-09-16 10:13:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (2/3) ... [2022-09-16 10:13:32,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a9ecf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:13:32, skipping insertion in model container [2022-09-16 10:13:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:13:32" (3/3) ... [2022-09-16 10:13:32,625 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-6.i [2022-09-16 10:13:32,631 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:13:32,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:13:32,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 10:13:32,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:13:32,706 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:13:32,745 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 115 transitions, 240 flow [2022-09-16 10:13:33,040 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:33,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:13:33,058 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;@39bae813, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:13:33,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-09-16 10:13:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:33,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-09-16 10:13:33,101 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:33,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:33,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:33,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2090278822, now seen corresponding path program 1 times [2022-09-16 10:13:33,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:33,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964082590] [2022-09-16 10:13:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:33,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:33,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964082590] [2022-09-16 10:13:33,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964082590] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:33,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:33,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:33,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610330510] [2022-09-16 10:13:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:33,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:33,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:33,355 INFO L87 Difference]: Start difference. First operand has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 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 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:33,705 INFO L93 Difference]: Finished difference Result 14861 states and 44393 transitions. [2022-09-16 10:13:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:33,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-09-16 10:13:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:33,847 INFO L225 Difference]: With dead ends: 14861 [2022-09-16 10:13:33,848 INFO L226 Difference]: Without dead ends: 14861 [2022-09-16 10:13:33,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:33,853 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 174 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:33,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 243 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:34,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14861 states. [2022-09-16 10:13:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14861 to 11101. [2022-09-16 10:13:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11101 states, 10953 states have (on average 3.034693691226148) internal successors, (33239), 11100 states have internal predecessors, (33239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11101 states to 11101 states and 33239 transitions. [2022-09-16 10:13:34,451 INFO L78 Accepts]: Start accepts. Automaton has 11101 states and 33239 transitions. Word has length 36 [2022-09-16 10:13:34,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:34,452 INFO L495 AbstractCegarLoop]: Abstraction has 11101 states and 33239 transitions. [2022-09-16 10:13:34,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 11101 states and 33239 transitions. [2022-09-16 10:13:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-09-16 10:13:34,455 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:34,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:34,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:13:34,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1286757501, now seen corresponding path program 1 times [2022-09-16 10:13:34,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:34,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378432591] [2022-09-16 10:13:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:34,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:34,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378432591] [2022-09-16 10:13:34,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378432591] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:34,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:34,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053211367] [2022-09-16 10:13:34,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:34,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:34,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:34,636 INFO L87 Difference]: Start difference. First operand 11101 states and 33239 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:34,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:34,858 INFO L93 Difference]: Finished difference Result 15825 states and 47273 transitions. [2022-09-16 10:13:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-09-16 10:13:34,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:34,931 INFO L225 Difference]: With dead ends: 15825 [2022-09-16 10:13:34,931 INFO L226 Difference]: Without dead ends: 15825 [2022-09-16 10:13:34,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 10:13:34,935 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 208 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:34,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 326 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2022-09-16 10:13:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 13533. [2022-09-16 10:13:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13533 states, 13385 states have (on average 3.0984684348150915) internal successors, (41473), 13532 states have internal predecessors, (41473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 41473 transitions. [2022-09-16 10:13:35,589 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 41473 transitions. Word has length 38 [2022-09-16 10:13:35,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:35,589 INFO L495 AbstractCegarLoop]: Abstraction has 13533 states and 41473 transitions. [2022-09-16 10:13:35,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 41473 transitions. [2022-09-16 10:13:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:35,591 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:35,592 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] [2022-09-16 10:13:35,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:13:35,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232894, now seen corresponding path program 1 times [2022-09-16 10:13:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824797387] [2022-09-16 10:13:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:35,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:35,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:35,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824797387] [2022-09-16 10:13:35,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824797387] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:35,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337919411] [2022-09-16 10:13:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:35,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:35,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:35,672 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 10:13:35,673 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 10:13:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:35,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:35,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:35,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:35,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337919411] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:35,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-09-16 10:13:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376427367] [2022-09-16 10:13:35,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:35,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:13:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:13:35,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:13:35,934 INFO L87 Difference]: Start difference. First operand 13533 states and 41473 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:36,689 INFO L93 Difference]: Finished difference Result 53588 states and 158254 transitions. [2022-09-16 10:13:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:13:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-09-16 10:13:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:37,106 INFO L225 Difference]: With dead ends: 53588 [2022-09-16 10:13:37,106 INFO L226 Difference]: Without dead ends: 53588 [2022-09-16 10:13:37,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:13:37,107 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1753 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:37,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 1017 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53588 states. [2022-09-16 10:13:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53588 to 32695. [2022-09-16 10:13:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32695 states, 32547 states have (on average 3.185055458260362) internal successors, (103664), 32694 states have internal predecessors, (103664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32695 states to 32695 states and 103664 transitions. [2022-09-16 10:13:38,426 INFO L78 Accepts]: Start accepts. Automaton has 32695 states and 103664 transitions. Word has length 43 [2022-09-16 10:13:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:38,427 INFO L495 AbstractCegarLoop]: Abstraction has 32695 states and 103664 transitions. [2022-09-16 10:13:38,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:38,427 INFO L276 IsEmpty]: Start isEmpty. Operand 32695 states and 103664 transitions. [2022-09-16 10:13:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:38,435 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:38,435 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] [2022-09-16 10:13:38,454 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 10:13:38,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:38,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:38,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232893, now seen corresponding path program 1 times [2022-09-16 10:13:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:38,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521445943] [2022-09-16 10:13:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:38,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:38,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521445943] [2022-09-16 10:13:38,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521445943] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:38,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008315426] [2022-09-16 10:13:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:38,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:38,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:38,998 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 10:13:38,999 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 10:13:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:39,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:39,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:39,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:39,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008315426] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:39,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:39,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-09-16 10:13:39,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785210613] [2022-09-16 10:13:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:39,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:39,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:39,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:39,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:39,117 INFO L87 Difference]: Start difference. First operand 32695 states and 103664 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 10:13:39,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:39,581 INFO L93 Difference]: Finished difference Result 38458 states and 117887 transitions. [2022-09-16 10:13:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 10:13:39,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:39,777 INFO L225 Difference]: With dead ends: 38458 [2022-09-16 10:13:39,778 INFO L226 Difference]: Without dead ends: 38458 [2022-09-16 10:13:39,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:39,782 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 220 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:39,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 272 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38458 states. [2022-09-16 10:13:40,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38458 to 29149. [2022-09-16 10:13:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29149 states, 29055 states have (on average 3.0905524006195146) internal successors, (89796), 29148 states have internal predecessors, (89796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29149 states to 29149 states and 89796 transitions. [2022-09-16 10:13:40,667 INFO L78 Accepts]: Start accepts. Automaton has 29149 states and 89796 transitions. Word has length 43 [2022-09-16 10:13:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:40,667 INFO L495 AbstractCegarLoop]: Abstraction has 29149 states and 89796 transitions. [2022-09-16 10:13:40,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 10:13:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 29149 states and 89796 transitions. [2022-09-16 10:13:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:13:40,668 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:40,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:40,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 10:13:40,883 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,SelfDestructingSolverStorable3 [2022-09-16 10:13:40,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash -447258493, now seen corresponding path program 1 times [2022-09-16 10:13:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:40,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069599181] [2022-09-16 10:13:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:40,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:40,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069599181] [2022-09-16 10:13:40,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069599181] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:40,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:40,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554657314] [2022-09-16 10:13:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:40,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:40,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:40,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:40,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:40,934 INFO L87 Difference]: Start difference. First operand 29149 states and 89796 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:41,266 INFO L93 Difference]: Finished difference Result 31125 states and 94762 transitions. [2022-09-16 10:13:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-09-16 10:13:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:41,454 INFO L225 Difference]: With dead ends: 31125 [2022-09-16 10:13:41,454 INFO L226 Difference]: Without dead ends: 31125 [2022-09-16 10:13:41,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 10:13:41,455 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 191 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:41,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 320 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31125 states. [2022-09-16 10:13:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31125 to 29643. [2022-09-16 10:13:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29643 states, 29549 states have (on average 3.073200446715625) internal successors, (90810), 29642 states have internal predecessors, (90810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29643 states to 29643 states and 90810 transitions. [2022-09-16 10:13:42,406 INFO L78 Accepts]: Start accepts. Automaton has 29643 states and 90810 transitions. Word has length 44 [2022-09-16 10:13:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:42,407 INFO L495 AbstractCegarLoop]: Abstraction has 29643 states and 90810 transitions. [2022-09-16 10:13:42,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 29643 states and 90810 transitions. [2022-09-16 10:13:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:13:42,409 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:42,409 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:13:42,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:13:42,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:42,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:42,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1353304293, now seen corresponding path program 1 times [2022-09-16 10:13:42,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:42,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083752703] [2022-09-16 10:13:42,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:42,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:13:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:42,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083752703] [2022-09-16 10:13:42,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083752703] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:42,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:42,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:42,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146319381] [2022-09-16 10:13:42,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:42,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:42,596 INFO L87 Difference]: Start difference. First operand 29643 states and 90810 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:42,788 INFO L93 Difference]: Finished difference Result 28453 states and 86904 transitions. [2022-09-16 10:13:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:42,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-09-16 10:13:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:42,872 INFO L225 Difference]: With dead ends: 28453 [2022-09-16 10:13:42,872 INFO L226 Difference]: Without dead ends: 28453 [2022-09-16 10:13:42,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:13:42,873 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 206 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:42,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 317 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28453 states. [2022-09-16 10:13:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28453 to 28453. [2022-09-16 10:13:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28453 states, 28383 states have (on average 3.061832787231794) internal successors, (86904), 28452 states have internal predecessors, (86904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28453 states to 28453 states and 86904 transitions. [2022-09-16 10:13:43,689 INFO L78 Accepts]: Start accepts. Automaton has 28453 states and 86904 transitions. Word has length 45 [2022-09-16 10:13:43,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:43,689 INFO L495 AbstractCegarLoop]: Abstraction has 28453 states and 86904 transitions. [2022-09-16 10:13:43,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 28453 states and 86904 transitions. [2022-09-16 10:13:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:43,692 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:43,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:13:43,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:43,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:43,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2117796030, now seen corresponding path program 1 times [2022-09-16 10:13:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:43,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486269512] [2022-09-16 10:13:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:43,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:44,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:44,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486269512] [2022-09-16 10:13:44,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486269512] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:44,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:44,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:44,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016259984] [2022-09-16 10:13:44,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:44,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:44,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:44,004 INFO L87 Difference]: Start difference. First operand 28453 states and 86904 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:44,261 INFO L93 Difference]: Finished difference Result 45435 states and 138916 transitions. [2022-09-16 10:13:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:44,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-09-16 10:13:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:44,404 INFO L225 Difference]: With dead ends: 45435 [2022-09-16 10:13:44,404 INFO L226 Difference]: Without dead ends: 45435 [2022-09-16 10:13:44,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:44,406 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 109 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:44,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 225 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45435 states. [2022-09-16 10:13:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45435 to 30688. [2022-09-16 10:13:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30688 states, 30618 states have (on average 3.0865503951923703) internal successors, (94504), 30687 states have internal predecessors, (94504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30688 states to 30688 states and 94504 transitions. [2022-09-16 10:13:45,559 INFO L78 Accepts]: Start accepts. Automaton has 30688 states and 94504 transitions. Word has length 46 [2022-09-16 10:13:45,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:45,560 INFO L495 AbstractCegarLoop]: Abstraction has 30688 states and 94504 transitions. [2022-09-16 10:13:45,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 30688 states and 94504 transitions. [2022-09-16 10:13:45,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:45,561 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:45,561 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:13:45,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:13:45,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:45,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:45,562 INFO L85 PathProgramCache]: Analyzing trace with hash -997239562, now seen corresponding path program 1 times [2022-09-16 10:13:45,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:45,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529808619] [2022-09-16 10:13:45,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:45,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:45,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:45,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529808619] [2022-09-16 10:13:45,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529808619] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:45,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299640193] [2022-09-16 10:13:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:45,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:45,652 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 10:13:45,661 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 10:13:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:45,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:13:45,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:45,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:45,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299640193] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:45,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:45,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:13:45,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023535505] [2022-09-16 10:13:45,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:45,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:13:45,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:45,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:13:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:45,739 INFO L87 Difference]: Start difference. First operand 30688 states and 94504 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:45,922 INFO L93 Difference]: Finished difference Result 31824 states and 97044 transitions. [2022-09-16 10:13:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:13:45,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-09-16 10:13:45,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:46,009 INFO L225 Difference]: With dead ends: 31824 [2022-09-16 10:13:46,009 INFO L226 Difference]: Without dead ends: 31824 [2022-09-16 10:13:46,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:13:46,010 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 331 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:46,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 773 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31824 states. [2022-09-16 10:13:46,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31824 to 25480. [2022-09-16 10:13:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25480 states, 25434 states have (on average 3.06526696547928) internal successors, (77962), 25479 states have internal predecessors, (77962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25480 states to 25480 states and 77962 transitions. [2022-09-16 10:13:46,902 INFO L78 Accepts]: Start accepts. Automaton has 25480 states and 77962 transitions. Word has length 46 [2022-09-16 10:13:46,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:46,902 INFO L495 AbstractCegarLoop]: Abstraction has 25480 states and 77962 transitions. [2022-09-16 10:13:46,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand 25480 states and 77962 transitions. [2022-09-16 10:13:46,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:13:46,904 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:46,905 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:13:46,921 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 10:13:47,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:47,114 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash 966995920, now seen corresponding path program 1 times [2022-09-16 10:13:47,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:47,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253865966] [2022-09-16 10:13:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:13:47,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:47,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253865966] [2022-09-16 10:13:47,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253865966] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:47,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:47,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:47,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81707179] [2022-09-16 10:13:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:47,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:47,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:47,164 INFO L87 Difference]: Start difference. First operand 25480 states and 77962 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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 10:13:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:47,302 INFO L93 Difference]: Finished difference Result 24742 states and 75730 transitions. [2022-09-16 10:13:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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 10:13:47,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:47,377 INFO L225 Difference]: With dead ends: 24742 [2022-09-16 10:13:47,377 INFO L226 Difference]: Without dead ends: 24742 [2022-09-16 10:13:47,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:13:47,379 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 187 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:47,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 300 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24742 states. [2022-09-16 10:13:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24742 to 24742. [2022-09-16 10:13:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24742 states, 24708 states have (on average 3.0649991905455725) internal successors, (75730), 24741 states have internal predecessors, (75730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24742 states to 24742 states and 75730 transitions. [2022-09-16 10:13:48,078 INFO L78 Accepts]: Start accepts. Automaton has 24742 states and 75730 transitions. Word has length 51 [2022-09-16 10:13:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:48,079 INFO L495 AbstractCegarLoop]: Abstraction has 24742 states and 75730 transitions. [2022-09-16 10:13:48,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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 10:13:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24742 states and 75730 transitions. [2022-09-16 10:13:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:48,082 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:48,082 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:13:48,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:13:48,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash -87897220, now seen corresponding path program 1 times [2022-09-16 10:13:48,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:48,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935113131] [2022-09-16 10:13:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:48,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:48,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935113131] [2022-09-16 10:13:48,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935113131] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:48,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142353075] [2022-09-16 10:13:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:48,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:48,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:48,140 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 10:13:48,142 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 10:13:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:48,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:48,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:48,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142353075] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:48,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:48,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:13:48,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544518006] [2022-09-16 10:13:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:48,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:48,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:48,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:13:48,229 INFO L87 Difference]: Start difference. First operand 24742 states and 75730 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:48,360 INFO L93 Difference]: Finished difference Result 24004 states and 73498 transitions. [2022-09-16 10:13:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:48,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-09-16 10:13:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:48,424 INFO L225 Difference]: With dead ends: 24004 [2022-09-16 10:13:48,425 INFO L226 Difference]: Without dead ends: 24004 [2022-09-16 10:13:48,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:13:48,426 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 188 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:48,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 245 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:48,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24004 states. [2022-09-16 10:13:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24004 to 21278. [2022-09-16 10:13:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21278 states, 21256 states have (on average 3.0487391795257808) internal successors, (64804), 21277 states have internal predecessors, (64804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21278 states to 21278 states and 64804 transitions. [2022-09-16 10:13:49,090 INFO L78 Accepts]: Start accepts. Automaton has 21278 states and 64804 transitions. Word has length 52 [2022-09-16 10:13:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:49,090 INFO L495 AbstractCegarLoop]: Abstraction has 21278 states and 64804 transitions. [2022-09-16 10:13:49,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 21278 states and 64804 transitions. [2022-09-16 10:13:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:49,093 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:49,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:49,113 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 10:13:49,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:49,312 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:49,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1641089002, now seen corresponding path program 1 times [2022-09-16 10:13:49,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:49,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060414546] [2022-09-16 10:13:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:49,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:49,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:49,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060414546] [2022-09-16 10:13:49,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060414546] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:49,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:49,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:49,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170988295] [2022-09-16 10:13:49,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:49,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:49,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:49,361 INFO L87 Difference]: Start difference. First operand 21278 states and 64804 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:49,672 INFO L93 Difference]: Finished difference Result 25454 states and 76979 transitions. [2022-09-16 10:13:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:49,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-09-16 10:13:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:49,742 INFO L225 Difference]: With dead ends: 25454 [2022-09-16 10:13:49,742 INFO L226 Difference]: Without dead ends: 25454 [2022-09-16 10:13:49,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 10:13:49,743 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 109 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:49,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 274 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25454 states. [2022-09-16 10:13:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25454 to 24410. [2022-09-16 10:13:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24410 states, 24388 states have (on average 3.026365425619157) internal successors, (73807), 24409 states have internal predecessors, (73807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24410 states to 24410 states and 73807 transitions. [2022-09-16 10:13:50,369 INFO L78 Accepts]: Start accepts. Automaton has 24410 states and 73807 transitions. Word has length 52 [2022-09-16 10:13:50,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:50,369 INFO L495 AbstractCegarLoop]: Abstraction has 24410 states and 73807 transitions. [2022-09-16 10:13:50,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 24410 states and 73807 transitions. [2022-09-16 10:13:50,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:13:50,381 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:50,381 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] [2022-09-16 10:13:50,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:13:50,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1948310297, now seen corresponding path program 1 times [2022-09-16 10:13:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:50,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263713818] [2022-09-16 10:13:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:50,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263713818] [2022-09-16 10:13:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263713818] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:50,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384305214] [2022-09-16 10:13:50,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:50,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:50,432 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 10:13:50,447 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 10:13:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:50,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384305214] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:50,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:50,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:50,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400258171] [2022-09-16 10:13:50,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:50,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:50,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:50,694 INFO L87 Difference]: Start difference. First operand 24410 states and 73807 transitions. Second operand has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:51,068 INFO L93 Difference]: Finished difference Result 52304 states and 158483 transitions. [2022-09-16 10:13:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 10:13:51,068 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-09-16 10:13:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:51,410 INFO L225 Difference]: With dead ends: 52304 [2022-09-16 10:13:51,411 INFO L226 Difference]: Without dead ends: 52304 [2022-09-16 10:13:51,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:13:51,411 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1295 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:51,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 906 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52304 states. [2022-09-16 10:13:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52304 to 32240. [2022-09-16 10:13:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32240 states, 32218 states have (on average 3.109721273822087) internal successors, (100189), 32239 states have internal predecessors, (100189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32240 states to 32240 states and 100189 transitions. [2022-09-16 10:13:52,356 INFO L78 Accepts]: Start accepts. Automaton has 32240 states and 100189 transitions. Word has length 57 [2022-09-16 10:13:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:52,356 INFO L495 AbstractCegarLoop]: Abstraction has 32240 states and 100189 transitions. [2022-09-16 10:13:52,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 32240 states and 100189 transitions. [2022-09-16 10:13:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:13:52,361 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:52,362 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] [2022-09-16 10:13:52,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:52,566 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,SelfDestructingSolverStorable11 [2022-09-16 10:13:52,568 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:52,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash 268077310, now seen corresponding path program 1 times [2022-09-16 10:13:52,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:52,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463514951] [2022-09-16 10:13:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:52,642 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 10:13:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:52,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463514951] [2022-09-16 10:13:52,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463514951] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:52,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018145978] [2022-09-16 10:13:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:52,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:52,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:13:52,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:13:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:52,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:52,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:52,827 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 10:13:52,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:52,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018145978] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:52,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:52,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-09-16 10:13:52,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187165561] [2022-09-16 10:13:52,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:52,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:13:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:52,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:13:52,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:13:52,828 INFO L87 Difference]: Start difference. First operand 32240 states and 100189 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:52,997 INFO L93 Difference]: Finished difference Result 31718 states and 98081 transitions. [2022-09-16 10:13:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:13:52,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-09-16 10:13:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:53,077 INFO L225 Difference]: With dead ends: 31718 [2022-09-16 10:13:53,077 INFO L226 Difference]: Without dead ends: 31718 [2022-09-16 10:13:53,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:13:53,078 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 220 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:53,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 408 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2022-09-16 10:13:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 31718. [2022-09-16 10:13:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31718 states, 31700 states have (on average 3.09403785488959) internal successors, (98081), 31717 states have internal predecessors, (98081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31718 states to 31718 states and 98081 transitions. [2022-09-16 10:13:54,250 INFO L78 Accepts]: Start accepts. Automaton has 31718 states and 98081 transitions. Word has length 58 [2022-09-16 10:13:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:54,251 INFO L495 AbstractCegarLoop]: Abstraction has 31718 states and 98081 transitions. [2022-09-16 10:13:54,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 31718 states and 98081 transitions. [2022-09-16 10:13:54,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:13:54,258 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:54,258 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-09-16 10:13:54,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:54,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:54,463 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1976694235, now seen corresponding path program 1 times [2022-09-16 10:13:54,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:54,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725593416] [2022-09-16 10:13:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:54,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:54,523 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 10:13:54,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:54,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725593416] [2022-09-16 10:13:54,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725593416] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:54,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465010621] [2022-09-16 10:13:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:54,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:54,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:54,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:13:54,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:13:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:54,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:54,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:54,701 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 10:13:54,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:54,795 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 10:13:54,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465010621] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:54,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:54,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195905012] [2022-09-16 10:13:54,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:54,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:54,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:54,797 INFO L87 Difference]: Start difference. First operand 31718 states and 98081 transitions. Second operand has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:55,573 INFO L93 Difference]: Finished difference Result 84481 states and 259689 transitions. [2022-09-16 10:13:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:13:55,573 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-09-16 10:13:55,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:55,829 INFO L225 Difference]: With dead ends: 84481 [2022-09-16 10:13:55,829 INFO L226 Difference]: Without dead ends: 84481 [2022-09-16 10:13:55,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=249, Invalid=401, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:13:55,830 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2200 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:55,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 1176 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:55,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84481 states. [2022-09-16 10:13:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84481 to 51980. [2022-09-16 10:13:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51980 states, 51962 states have (on average 3.1379662060736693) internal successors, (163055), 51979 states have internal predecessors, (163055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51980 states to 51980 states and 163055 transitions. [2022-09-16 10:13:57,473 INFO L78 Accepts]: Start accepts. Automaton has 51980 states and 163055 transitions. Word has length 60 [2022-09-16 10:13:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:57,473 INFO L495 AbstractCegarLoop]: Abstraction has 51980 states and 163055 transitions. [2022-09-16 10:13:57,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 51980 states and 163055 transitions. [2022-09-16 10:13:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:13:57,480 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:57,480 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:13:57,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:57,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:57,697 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:57,698 INFO L85 PathProgramCache]: Analyzing trace with hash 747928068, now seen corresponding path program 1 times [2022-09-16 10:13:57,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:57,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352966551] [2022-09-16 10:13:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:57,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:57,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:57,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352966551] [2022-09-16 10:13:57,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352966551] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:57,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966338832] [2022-09-16 10:13:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:57,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:57,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:57,768 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:13:57,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:13:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:57,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:57,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:57,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:57,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:57,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966338832] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:57,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:57,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:57,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946572613] [2022-09-16 10:13:57,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:57,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:57,998 INFO L87 Difference]: Start difference. First operand 51980 states and 163055 transitions. Second operand has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:59,695 INFO L93 Difference]: Finished difference Result 147253 states and 454556 transitions. [2022-09-16 10:13:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:13:59,696 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-09-16 10:13:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:00,452 INFO L225 Difference]: With dead ends: 147253 [2022-09-16 10:14:00,452 INFO L226 Difference]: Without dead ends: 147253 [2022-09-16 10:14:00,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=371, Invalid=685, Unknown=0, NotChecked=0, Total=1056 [2022-09-16 10:14:00,453 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2199 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:00,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 1725 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:14:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147253 states. [2022-09-16 10:14:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147253 to 78647. [2022-09-16 10:14:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78647 states, 78629 states have (on average 3.161479861119943) internal successors, (248584), 78646 states have internal predecessors, (248584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78647 states to 78647 states and 248584 transitions. [2022-09-16 10:14:04,123 INFO L78 Accepts]: Start accepts. Automaton has 78647 states and 248584 transitions. Word has length 60 [2022-09-16 10:14:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:04,124 INFO L495 AbstractCegarLoop]: Abstraction has 78647 states and 248584 transitions. [2022-09-16 10:14:04,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 78647 states and 248584 transitions. [2022-09-16 10:14:04,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:14:04,159 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:04,159 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:14:04,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:04,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 10:14:04,377 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:04,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:04,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1331666383, now seen corresponding path program 1 times [2022-09-16 10:14:04,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805115894] [2022-09-16 10:14:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:14:04,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:04,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805115894] [2022-09-16 10:14:04,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805115894] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:04,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:14:04,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:14:04,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101534852] [2022-09-16 10:14:04,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:04,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:14:04,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:04,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:14:04,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:14:04,407 INFO L87 Difference]: Start difference. First operand 78647 states and 248584 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:04,880 INFO L93 Difference]: Finished difference Result 77354 states and 243278 transitions. [2022-09-16 10:14:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:14:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-09-16 10:14:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:05,524 INFO L225 Difference]: With dead ends: 77354 [2022-09-16 10:14:05,525 INFO L226 Difference]: Without dead ends: 77354 [2022-09-16 10:14:05,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:14:05,535 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 112 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:05,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 259 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:14:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77354 states. [2022-09-16 10:14:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77354 to 77354. [2022-09-16 10:14:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77354 states, 77340 states have (on average 3.1455650374967674) internal successors, (243278), 77353 states have internal predecessors, (243278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77354 states to 77354 states and 243278 transitions. [2022-09-16 10:14:07,966 INFO L78 Accepts]: Start accepts. Automaton has 77354 states and 243278 transitions. Word has length 63 [2022-09-16 10:14:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:07,966 INFO L495 AbstractCegarLoop]: Abstraction has 77354 states and 243278 transitions. [2022-09-16 10:14:07,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 77354 states and 243278 transitions. [2022-09-16 10:14:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:14:07,986 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:07,986 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:14:07,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:14:07,986 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1668015338, now seen corresponding path program 1 times [2022-09-16 10:14:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456474816] [2022-09-16 10:14:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456474816] [2022-09-16 10:14:08,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456474816] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034444187] [2022-09-16 10:14:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:08,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:08,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:08,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:14:08,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:14:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:08,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:14:08,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:08,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:14:08,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034444187] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:08,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:14:08,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:14:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954073716] [2022-09-16 10:14:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:08,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:14:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:08,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:14:08,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:14:08,161 INFO L87 Difference]: Start difference. First operand 77354 states and 243278 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:08,940 INFO L93 Difference]: Finished difference Result 76061 states and 237972 transitions. [2022-09-16 10:14:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:14:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-09-16 10:14:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:09,192 INFO L225 Difference]: With dead ends: 76061 [2022-09-16 10:14:09,193 INFO L226 Difference]: Without dead ends: 76061 [2022-09-16 10:14:09,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:14:09,193 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 127 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:09,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 216 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:14:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76061 states. [2022-09-16 10:14:10,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76061 to 76061. [2022-09-16 10:14:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76061 states, 76051 states have (on average 3.129110728327044) internal successors, (237972), 76060 states have internal predecessors, (237972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76061 states to 76061 states and 237972 transitions. [2022-09-16 10:14:11,468 INFO L78 Accepts]: Start accepts. Automaton has 76061 states and 237972 transitions. Word has length 64 [2022-09-16 10:14:11,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:11,468 INFO L495 AbstractCegarLoop]: Abstraction has 76061 states and 237972 transitions. [2022-09-16 10:14:11,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 76061 states and 237972 transitions. [2022-09-16 10:14:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:14:11,489 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:11,489 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-09-16 10:14:11,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-09-16 10:14:11,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:14:11,709 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1689933468, now seen corresponding path program 1 times [2022-09-16 10:14:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:11,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722376088] [2022-09-16 10:14:11,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:11,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722376088] [2022-09-16 10:14:11,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722376088] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178947214] [2022-09-16 10:14:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:11,784 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:14:11,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:14:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:14:11,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:11,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:12,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178947214] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:12,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:12,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-09-16 10:14:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632625057] [2022-09-16 10:14:12,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:12,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-09-16 10:14:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:12,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-09-16 10:14:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:14:12,074 INFO L87 Difference]: Start difference. First operand 76061 states and 237972 transitions. Second operand has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:14,874 INFO L93 Difference]: Finished difference Result 267638 states and 818031 transitions. [2022-09-16 10:14:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:14:14,874 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-09-16 10:14:14,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:16,330 INFO L225 Difference]: With dead ends: 267638 [2022-09-16 10:14:16,330 INFO L226 Difference]: Without dead ends: 267638 [2022-09-16 10:14:16,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=794, Invalid=1656, Unknown=0, NotChecked=0, Total=2450 [2022-09-16 10:14:16,331 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 4910 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:16,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 2558 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:16,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267638 states. [2022-09-16 10:14:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267638 to 134279. [2022-09-16 10:14:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134279 states, 134269 states have (on average 3.185791210182544) internal successors, (427753), 134278 states have internal predecessors, (427753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134279 states to 134279 states and 427753 transitions. [2022-09-16 10:14:22,350 INFO L78 Accepts]: Start accepts. Automaton has 134279 states and 427753 transitions. Word has length 67 [2022-09-16 10:14:22,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:22,350 INFO L495 AbstractCegarLoop]: Abstraction has 134279 states and 427753 transitions. [2022-09-16 10:14:22,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 134279 states and 427753 transitions. [2022-09-16 10:14:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-09-16 10:14:22,463 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:22,463 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:22,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-09-16 10:14:22,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:14:22,680 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:22,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:22,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1762553510, now seen corresponding path program 2 times [2022-09-16 10:14:22,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:22,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815620548] [2022-09-16 10:14:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:22,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:22,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:22,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815620548] [2022-09-16 10:14:22,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815620548] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:22,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950108157] [2022-09-16 10:14:22,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:22,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:22,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:22,884 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:14:22,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:14:23,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:23,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:23,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjunts are in the unsatisfiable core [2022-09-16 10:14:23,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:23,189 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:23,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:14:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950108157] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:14:23,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 23 [2022-09-16 10:14:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263139730] [2022-09-16 10:14:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:23,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 10:14:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:23,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 10:14:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:14:23,191 INFO L87 Difference]: Start difference. First operand 134279 states and 427753 transitions. Second operand has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:26,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:26,336 INFO L93 Difference]: Finished difference Result 269042 states and 862647 transitions. [2022-09-16 10:14:26,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:14:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-09-16 10:14:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:28,368 INFO L225 Difference]: With dead ends: 269042 [2022-09-16 10:14:28,368 INFO L226 Difference]: Without dead ends: 266747 [2022-09-16 10:14:28,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:14:28,369 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 1019 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:28,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 3227 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:14:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266747 states. [2022-09-16 10:14:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266747 to 260684. [2022-09-16 10:14:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260684 states, 260674 states have (on average 3.229363112546706) internal successors, (841811), 260683 states have internal predecessors, (841811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260684 states to 260684 states and 841811 transitions. [2022-09-16 10:14:37,686 INFO L78 Accepts]: Start accepts. Automaton has 260684 states and 841811 transitions. Word has length 78 [2022-09-16 10:14:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:37,686 INFO L495 AbstractCegarLoop]: Abstraction has 260684 states and 841811 transitions. [2022-09-16 10:14:37,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 260684 states and 841811 transitions. [2022-09-16 10:14:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:14:37,793 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:37,793 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:37,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:37,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:37,996 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash 945577465, now seen corresponding path program 2 times [2022-09-16 10:14:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:37,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263013632] [2022-09-16 10:14:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:38,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:38,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263013632] [2022-09-16 10:14:38,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263013632] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:38,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973232691] [2022-09-16 10:14:38,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:38,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:38,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:38,141 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:14:38,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 10:14:38,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:38,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:38,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:14:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:38,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:38,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973232691] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:38,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:38,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-09-16 10:14:38,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009302347] [2022-09-16 10:14:38,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:38,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 10:14:38,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:38,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 10:14:38,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:14:38,659 INFO L87 Difference]: Start difference. First operand 260684 states and 841811 transitions. Second operand has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:48,176 INFO L93 Difference]: Finished difference Result 902950 states and 2883161 transitions. [2022-09-16 10:14:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:14:48,176 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have 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 10:14:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:54,453 INFO L225 Difference]: With dead ends: 902950 [2022-09-16 10:14:54,454 INFO L226 Difference]: Without dead ends: 902950 [2022-09-16 10:14:54,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=627, Invalid=2129, Unknown=0, NotChecked=0, Total=2756 [2022-09-16 10:14:54,455 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 4523 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4523 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:54,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4523 Valid, 2000 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902950 states. [2022-09-16 10:15:15,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902950 to 457056. [2022-09-16 10:15:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457056 states, 457046 states have (on average 3.255643852041151) internal successors, (1487979), 457055 states have internal predecessors, (1487979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457056 states to 457056 states and 1487979 transitions. [2022-09-16 10:15:20,997 INFO L78 Accepts]: Start accepts. Automaton has 457056 states and 1487979 transitions. Word has length 79 [2022-09-16 10:15:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:15:20,997 INFO L495 AbstractCegarLoop]: Abstraction has 457056 states and 1487979 transitions. [2022-09-16 10:15:20,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 457056 states and 1487979 transitions. [2022-09-16 10:15:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:15:21,407 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:15:21,407 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:15:21,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-09-16 10:15:21,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:21,636 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:15:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:15:21,637 INFO L85 PathProgramCache]: Analyzing trace with hash -157597330, now seen corresponding path program 2 times [2022-09-16 10:15:21,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:15:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966907591] [2022-09-16 10:15:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:15:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:15:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:15:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:21,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:15:21,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966907591] [2022-09-16 10:15:21,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966907591] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:15:21,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582648759] [2022-09-16 10:15:21,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:15:21,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:21,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:15:21,778 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:15:21,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 10:15:21,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:15:21,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:15:21,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:15:21,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:15:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:22,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:15:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:22,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582648759] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:15:22,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:15:22,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-09-16 10:15:22,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723238690] [2022-09-16 10:15:22,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:15:22,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:15:22,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:15:22,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:15:22,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:15:22,200 INFO L87 Difference]: Start difference. First operand 457056 states and 1487979 transitions. Second operand has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:41,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:15:41,750 INFO L93 Difference]: Finished difference Result 1519062 states and 4815867 transitions. [2022-09-16 10:15:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:15:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have 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 10:15:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:15:52,465 INFO L225 Difference]: With dead ends: 1519062 [2022-09-16 10:15:52,523 INFO L226 Difference]: Without dead ends: 1504374 [2022-09-16 10:15:52,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1158, Invalid=2264, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:15:52,525 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 5165 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5165 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:15:52,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5165 Valid, 3090 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:15:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504374 states. [2022-09-16 10:16:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504374 to 803601.