/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:31:50,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:31:50,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:31:50,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:31:50,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:31:50,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:31:50,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:31:50,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:31:50,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:31:50,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:31:50,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:31:50,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:31:50,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:31:50,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:31:50,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:31:50,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:31:50,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:31:50,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:31:50,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:31:50,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:31:50,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:31:50,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:31:50,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:31:50,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:31:50,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:31:50,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:31:50,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:31:50,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:31:50,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:31:50,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:31:50,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:31:50,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:31:50,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:31:50,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:31:50,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:31:50,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:31:50,495 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-VariableLbe.epf [2019-12-27 08:31:50,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:31:50,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:31:50,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:31:50,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:31:50,511 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:31:50,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:31:50,511 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:31:50,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:31:50,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:31:50,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:31:50,513 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:31:50,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:31:50,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:31:50,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:31:50,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:31:50,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:31:50,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:31:50,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:31:50,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:31:50,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:31:50,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:31:50,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:31:50,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:31:50,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:31:50,816 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:31:50,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i [2019-12-27 08:31:50,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4e6b3d1/169aa692313d443496babf90e5c21dd3/FLAG34ce2b026 [2019-12-27 08:31:51,335 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:31:51,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i [2019-12-27 08:31:51,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4e6b3d1/169aa692313d443496babf90e5c21dd3/FLAG34ce2b026 [2019-12-27 08:31:51,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f4e6b3d1/169aa692313d443496babf90e5c21dd3 [2019-12-27 08:31:51,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:31:51,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:31:51,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:31:51,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:31:51,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:31:51,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:31:51" (1/1) ... [2019-12-27 08:31:51,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7bb2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:51, skipping insertion in model container [2019-12-27 08:31:51,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:31:51" (1/1) ... [2019-12-27 08:31:51,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:31:51,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:31:52,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:31:52,176 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:31:52,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:31:52,307 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:31:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52 WrapperNode [2019-12-27 08:31:52,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:31:52,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:31:52,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:31:52,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:31:52,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:31:52,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:31:52,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:31:52,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:31:52,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... [2019-12-27 08:31:52,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:31:52,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:31:52,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:31:52,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:31:52,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:31:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 08:31:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 08:31:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:31:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:31:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:31:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 08:31:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:31:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:31:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 08:31:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:31:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:31:52,496 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:31:52,908 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:31:52,909 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 08:31:52,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:31:52 BoogieIcfgContainer [2019-12-27 08:31:52,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:31:52,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:31:52,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:31:52,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:31:52,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:31:51" (1/3) ... [2019-12-27 08:31:52,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c669381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:31:52, skipping insertion in model container [2019-12-27 08:31:52,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:31:52" (2/3) ... [2019-12-27 08:31:52,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c669381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:31:52, skipping insertion in model container [2019-12-27 08:31:52,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:31:52" (3/3) ... [2019-12-27 08:31:52,919 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2019-12-27 08:31:52,929 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:31:52,930 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:31:52,945 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:31:52,946 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:31:52,980 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,981 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,981 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,981 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,982 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,982 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,982 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,982 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,983 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,983 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,983 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,984 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,984 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,984 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,985 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,986 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,986 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,986 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,986 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,987 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,987 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,987 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,988 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,988 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:52,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:53,015 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:31:53,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:31:53,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:31:53,032 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:31:53,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:31:53,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:31:53,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:31:53,032 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:31:53,032 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:31:53,045 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions [2019-12-27 08:31:53,046 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 08:31:53,095 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 08:31:53,095 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:31:53,102 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 08:31:53,108 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 08:31:53,133 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 08:31:53,133 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:31:53,135 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 08:31:53,137 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 992 [2019-12-27 08:31:53,138 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:31:55,335 WARN L192 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:31:55,459 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:31:55,463 INFO L206 etLargeBlockEncoding]: Checked pairs total: 729 [2019-12-27 08:31:55,463 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2019-12-27 08:31:55,467 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 12 transitions [2019-12-27 08:31:55,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2019-12-27 08:31:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-27 08:31:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:31:55,486 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:55,486 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:31:55,487 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:31:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:55,494 INFO L82 PathProgramCache]: Analyzing trace with hash 259287, now seen corresponding path program 1 times [2019-12-27 08:31:55,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:55,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576574307] [2019-12-27 08:31:55,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:31:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:31:55,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576574307] [2019-12-27 08:31:55,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:31:55,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:31:55,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584264992] [2019-12-27 08:31:55,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:31:55,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:31:55,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:31:55,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:31:55,745 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2019-12-27 08:31:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:31:55,798 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2019-12-27 08:31:55,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:31:55,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:31:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:31:55,829 INFO L225 Difference]: With dead ends: 35 [2019-12-27 08:31:55,829 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 08:31:55,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:31:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 08:31:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 08:31:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 08:31:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2019-12-27 08:31:55,877 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2019-12-27 08:31:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:31:55,878 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-12-27 08:31:55,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:31:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2019-12-27 08:31:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 08:31:55,880 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:55,880 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:31:55,880 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:31:55,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:55,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1095237165, now seen corresponding path program 1 times [2019-12-27 08:31:55,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:55,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638510828] [2019-12-27 08:31:55,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:31:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:31:56,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638510828] [2019-12-27 08:31:56,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:31:56,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:31:56,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714407335] [2019-12-27 08:31:56,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:31:56,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:31:56,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:31:56,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:31:56,076 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2019-12-27 08:31:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:31:56,100 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2019-12-27 08:31:56,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:31:56,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-27 08:31:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:31:56,104 INFO L225 Difference]: With dead ends: 26 [2019-12-27 08:31:56,104 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 08:31:56,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:31:56,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 08:31:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 08:31:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 08:31:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2019-12-27 08:31:56,111 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2019-12-27 08:31:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:31:56,112 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2019-12-27 08:31:56,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:31:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2019-12-27 08:31:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:31:56,113 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:56,113 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 08:31:56,113 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:31:56,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash 407361282, now seen corresponding path program 1 times [2019-12-27 08:31:56,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:56,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588059511] [2019-12-27 08:31:56,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:31:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:31:56,237 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:31:56,237 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:31:56,237 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:31:56,237 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 08:31:56,247 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,247 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,247 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,248 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,248 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,248 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,248 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,248 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,249 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,249 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,249 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,249 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,249 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,250 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,250 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,250 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,250 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,251 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,253 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,258 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,259 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,259 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,260 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,261 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,261 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,261 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,261 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,261 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,262 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,262 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,264 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,264 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,265 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,266 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,267 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,267 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,267 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,267 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:56,269 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 08:31:56,269 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:31:56,269 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:31:56,269 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:31:56,269 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:31:56,269 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:31:56,270 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:31:56,270 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:31:56,270 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:31:56,272 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions [2019-12-27 08:31:56,272 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 08:31:56,300 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 08:31:56,300 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 08:31:56,303 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 08:31:56,307 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 08:31:56,336 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 08:31:56,337 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 08:31:56,339 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 08:31:56,343 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2024 [2019-12-27 08:31:56,343 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:31:57,916 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 08:31:58,036 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:31:58,346 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2019-12-27 08:31:58,494 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:31:58,502 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2838 [2019-12-27 08:31:58,502 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2019-12-27 08:31:58,502 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions [2019-12-27 08:31:58,539 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 755 states. [2019-12-27 08:31:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states. [2019-12-27 08:31:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:31:58,540 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:58,540 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:31:58,540 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:31:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:58,541 INFO L82 PathProgramCache]: Analyzing trace with hash 443582, now seen corresponding path program 1 times [2019-12-27 08:31:58,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:58,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238376014] [2019-12-27 08:31:58,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:31:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:31:58,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238376014] [2019-12-27 08:31:58,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:31:58,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:31:58,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690849038] [2019-12-27 08:31:58,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:31:58,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:31:58,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:31:58,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:31:58,598 INFO L87 Difference]: Start difference. First operand 755 states. Second operand 3 states. [2019-12-27 08:31:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:31:58,665 INFO L93 Difference]: Finished difference Result 893 states and 2840 transitions. [2019-12-27 08:31:58,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:31:58,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:31:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:31:58,682 INFO L225 Difference]: With dead ends: 893 [2019-12-27 08:31:58,682 INFO L226 Difference]: Without dead ends: 825 [2019-12-27 08:31:58,682 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:31:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-12-27 08:31:58,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 728. [2019-12-27 08:31:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-27 08:31:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2380 transitions. [2019-12-27 08:31:58,791 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2380 transitions. Word has length 3 [2019-12-27 08:31:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:31:58,792 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2380 transitions. [2019-12-27 08:31:58,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:31:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2380 transitions. [2019-12-27 08:31:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:31:58,793 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:58,793 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:31:58,793 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:31:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:58,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1277587267, now seen corresponding path program 1 times [2019-12-27 08:31:58,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:58,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409183556] [2019-12-27 08:31:58,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:31:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:31:58,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409183556] [2019-12-27 08:31:58,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:31:58,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:31:58,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118825433] [2019-12-27 08:31:58,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:31:58,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:31:58,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:31:58,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:31:58,864 INFO L87 Difference]: Start difference. First operand 728 states and 2380 transitions. Second operand 5 states. [2019-12-27 08:31:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:31:58,990 INFO L93 Difference]: Finished difference Result 1107 states and 3359 transitions. [2019-12-27 08:31:58,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:31:58,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:31:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:31:59,003 INFO L225 Difference]: With dead ends: 1107 [2019-12-27 08:31:59,004 INFO L226 Difference]: Without dead ends: 1092 [2019-12-27 08:31:59,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:31:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-12-27 08:31:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 655. [2019-12-27 08:31:59,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-12-27 08:31:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2145 transitions. [2019-12-27 08:31:59,058 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2145 transitions. Word has length 10 [2019-12-27 08:31:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:31:59,059 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 2145 transitions. [2019-12-27 08:31:59,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:31:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2145 transitions. [2019-12-27 08:31:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:31:59,063 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:59,063 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:31:59,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:31:59,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:59,063 INFO L82 PathProgramCache]: Analyzing trace with hash 230062385, now seen corresponding path program 1 times [2019-12-27 08:31:59,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:59,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875268124] [2019-12-27 08:31:59,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:31:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:31:59,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875268124] [2019-12-27 08:31:59,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:31:59,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:31:59,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851048797] [2019-12-27 08:31:59,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:31:59,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:31:59,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:31:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:31:59,193 INFO L87 Difference]: Start difference. First operand 655 states and 2145 transitions. Second operand 5 states. [2019-12-27 08:31:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:31:59,297 INFO L93 Difference]: Finished difference Result 1068 states and 3229 transitions. [2019-12-27 08:31:59,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:31:59,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:31:59,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:31:59,307 INFO L225 Difference]: With dead ends: 1068 [2019-12-27 08:31:59,307 INFO L226 Difference]: Without dead ends: 1046 [2019-12-27 08:31:59,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:31:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2019-12-27 08:31:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 630. [2019-12-27 08:31:59,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-12-27 08:31:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 2011 transitions. [2019-12-27 08:31:59,337 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 2011 transitions. Word has length 14 [2019-12-27 08:31:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:31:59,338 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 2011 transitions. [2019-12-27 08:31:59,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:31:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 2011 transitions. [2019-12-27 08:31:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:31:59,346 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:31:59,346 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:31:59,346 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:31:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:31:59,347 INFO L82 PathProgramCache]: Analyzing trace with hash 226307167, now seen corresponding path program 1 times [2019-12-27 08:31:59,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:31:59,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330399368] [2019-12-27 08:31:59,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:31:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:31:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:31:59,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:31:59,408 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:31:59,408 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:31:59,409 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 08:31:59,422 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,423 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,424 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,425 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,426 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,427 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,428 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,429 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,429 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,429 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,429 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,432 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,433 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,439 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,439 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,440 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,440 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,440 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,440 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,442 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,442 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,442 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,442 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,442 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,443 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,443 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,443 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,444 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,445 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,446 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,448 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,450 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,450 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,450 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,450 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,450 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,451 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,452 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,452 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,453 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:31:59,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 08:31:59,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:31:59,455 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:31:59,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:31:59,455 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:31:59,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:31:59,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:31:59,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:31:59,455 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:31:59,461 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions [2019-12-27 08:31:59,461 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 08:31:59,510 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 08:31:59,510 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 08:31:59,515 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 08:31:59,524 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 08:31:59,558 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 08:31:59,558 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 08:31:59,561 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 08:31:59,567 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3420 [2019-12-27 08:31:59,567 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:01,461 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-12-27 08:32:01,601 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-12-27 08:32:01,716 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 08:32:01,825 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:01,838 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6734 [2019-12-27 08:32:01,838 INFO L214 etLargeBlockEncoding]: Total number of compositions: 89 [2019-12-27 08:32:01,838 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 40 transitions [2019-12-27 08:32:02,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5273 states. [2019-12-27 08:32:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states. [2019-12-27 08:32:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:02,189 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:02,189 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:02,189 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:02,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:02,190 INFO L82 PathProgramCache]: Analyzing trace with hash 672286, now seen corresponding path program 1 times [2019-12-27 08:32:02,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:02,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888809450] [2019-12-27 08:32:02,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:02,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888809450] [2019-12-27 08:32:02,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:02,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:02,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252392457] [2019-12-27 08:32:02,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:02,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:02,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:02,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:02,221 INFO L87 Difference]: Start difference. First operand 5273 states. Second operand 3 states. [2019-12-27 08:32:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:02,395 INFO L93 Difference]: Finished difference Result 7407 states and 31211 transitions. [2019-12-27 08:32:02,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:02,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:02,467 INFO L225 Difference]: With dead ends: 7407 [2019-12-27 08:32:02,467 INFO L226 Difference]: Without dead ends: 6859 [2019-12-27 08:32:02,467 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2019-12-27 08:32:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 5755. [2019-12-27 08:32:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2019-12-27 08:32:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 24922 transitions. [2019-12-27 08:32:02,736 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 24922 transitions. Word has length 3 [2019-12-27 08:32:02,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:02,736 INFO L462 AbstractCegarLoop]: Abstraction has 5755 states and 24922 transitions. [2019-12-27 08:32:02,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 24922 transitions. [2019-12-27 08:32:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:32:02,737 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:02,737 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:02,737 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:02,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:02,738 INFO L82 PathProgramCache]: Analyzing trace with hash -2052268641, now seen corresponding path program 1 times [2019-12-27 08:32:02,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:02,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341596235] [2019-12-27 08:32:02,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:02,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341596235] [2019-12-27 08:32:02,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:02,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:02,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841593514] [2019-12-27 08:32:02,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:02,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:02,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:02,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:02,792 INFO L87 Difference]: Start difference. First operand 5755 states and 24922 transitions. Second operand 5 states. [2019-12-27 08:32:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:03,035 INFO L93 Difference]: Finished difference Result 10309 states and 41465 transitions. [2019-12-27 08:32:03,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:03,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:32:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:03,115 INFO L225 Difference]: With dead ends: 10309 [2019-12-27 08:32:03,115 INFO L226 Difference]: Without dead ends: 10246 [2019-12-27 08:32:03,116 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2019-12-27 08:32:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 5479. [2019-12-27 08:32:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2019-12-27 08:32:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 23676 transitions. [2019-12-27 08:32:03,528 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 23676 transitions. Word has length 10 [2019-12-27 08:32:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:03,529 INFO L462 AbstractCegarLoop]: Abstraction has 5479 states and 23676 transitions. [2019-12-27 08:32:03,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:03,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 23676 transitions. [2019-12-27 08:32:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:03,530 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:03,530 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:03,531 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:03,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:03,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1690988075, now seen corresponding path program 1 times [2019-12-27 08:32:03,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:03,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518599435] [2019-12-27 08:32:03,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:03,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518599435] [2019-12-27 08:32:03,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:03,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:03,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050214316] [2019-12-27 08:32:03,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:03,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:03,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:03,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:03,615 INFO L87 Difference]: Start difference. First operand 5479 states and 23676 transitions. Second operand 5 states. [2019-12-27 08:32:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:03,829 INFO L93 Difference]: Finished difference Result 11134 states and 45075 transitions. [2019-12-27 08:32:03,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:03,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:32:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:03,885 INFO L225 Difference]: With dead ends: 11134 [2019-12-27 08:32:03,885 INFO L226 Difference]: Without dead ends: 11059 [2019-12-27 08:32:03,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2019-12-27 08:32:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5882. [2019-12-27 08:32:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5882 states. [2019-12-27 08:32:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 25395 transitions. [2019-12-27 08:32:04,828 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 25395 transitions. Word has length 14 [2019-12-27 08:32:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:04,829 INFO L462 AbstractCegarLoop]: Abstraction has 5882 states and 25395 transitions. [2019-12-27 08:32:04,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 25395 transitions. [2019-12-27 08:32:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 08:32:04,831 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:04,832 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:04,832 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:04,832 INFO L82 PathProgramCache]: Analyzing trace with hash -645314245, now seen corresponding path program 1 times [2019-12-27 08:32:04,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:04,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697394447] [2019-12-27 08:32:04,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:04,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697394447] [2019-12-27 08:32:04,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:04,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:04,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501754511] [2019-12-27 08:32:04,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:04,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:04,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:04,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:04,887 INFO L87 Difference]: Start difference. First operand 5882 states and 25395 transitions. Second operand 3 states. [2019-12-27 08:32:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:04,931 INFO L93 Difference]: Finished difference Result 2983 states and 10319 transitions. [2019-12-27 08:32:04,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:04,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 08:32:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:04,944 INFO L225 Difference]: With dead ends: 2983 [2019-12-27 08:32:04,944 INFO L226 Difference]: Without dead ends: 2983 [2019-12-27 08:32:04,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2019-12-27 08:32:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2959. [2019-12-27 08:32:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2019-12-27 08:32:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 10243 transitions. [2019-12-27 08:32:05,055 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 10243 transitions. Word has length 17 [2019-12-27 08:32:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:05,056 INFO L462 AbstractCegarLoop]: Abstraction has 2959 states and 10243 transitions. [2019-12-27 08:32:05,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 10243 transitions. [2019-12-27 08:32:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:05,058 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:05,058 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:05,058 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:05,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1331292250, now seen corresponding path program 1 times [2019-12-27 08:32:05,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:05,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827950162] [2019-12-27 08:32:05,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:05,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827950162] [2019-12-27 08:32:05,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904960797] [2019-12-27 08:32:05,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:05,246 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:05,248 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:05,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:05,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:05,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925103760] [2019-12-27 08:32:05,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:05,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:05,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:05,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:05,331 INFO L87 Difference]: Start difference. First operand 2959 states and 10243 transitions. Second operand 12 states. [2019-12-27 08:32:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:05,709 INFO L93 Difference]: Finished difference Result 6079 states and 20204 transitions. [2019-12-27 08:32:05,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:05,710 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 08:32:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:05,732 INFO L225 Difference]: With dead ends: 6079 [2019-12-27 08:32:05,732 INFO L226 Difference]: Without dead ends: 6043 [2019-12-27 08:32:05,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2019-12-27 08:32:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 2725. [2019-12-27 08:32:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2725 states. [2019-12-27 08:32:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 9384 transitions. [2019-12-27 08:32:05,840 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 9384 transitions. Word has length 18 [2019-12-27 08:32:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:05,841 INFO L462 AbstractCegarLoop]: Abstraction has 2725 states and 9384 transitions. [2019-12-27 08:32:05,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 9384 transitions. [2019-12-27 08:32:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:05,843 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:05,843 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:06,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:06,053 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:06,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:06,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1022908716, now seen corresponding path program 1 times [2019-12-27 08:32:06,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:06,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048352825] [2019-12-27 08:32:06,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:06,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048352825] [2019-12-27 08:32:06,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:06,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:06,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11668307] [2019-12-27 08:32:06,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:06,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:06,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:06,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:06,108 INFO L87 Difference]: Start difference. First operand 2725 states and 9384 transitions. Second operand 5 states. [2019-12-27 08:32:06,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:06,316 INFO L93 Difference]: Finished difference Result 5203 states and 17665 transitions. [2019-12-27 08:32:06,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:06,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 08:32:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:06,336 INFO L225 Difference]: With dead ends: 5203 [2019-12-27 08:32:06,336 INFO L226 Difference]: Without dead ends: 5167 [2019-12-27 08:32:06,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2019-12-27 08:32:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 2953. [2019-12-27 08:32:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2953 states. [2019-12-27 08:32:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 10213 transitions. [2019-12-27 08:32:06,430 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 10213 transitions. Word has length 18 [2019-12-27 08:32:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:06,434 INFO L462 AbstractCegarLoop]: Abstraction has 2953 states and 10213 transitions. [2019-12-27 08:32:06,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 10213 transitions. [2019-12-27 08:32:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:06,437 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:06,437 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:06,437 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:06,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:06,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1017797005, now seen corresponding path program 1 times [2019-12-27 08:32:06,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:06,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332007000] [2019-12-27 08:32:06,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:06,509 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:06,510 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:06,510 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:06,510 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,529 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,534 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,535 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,536 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,541 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,542 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,543 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,546 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,546 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,547 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,547 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,547 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,549 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,550 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,552 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,552 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,552 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,553 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,554 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,554 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,556 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,556 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,556 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,557 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,557 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,557 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,559 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,559 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,559 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,559 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,560 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,560 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,561 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,561 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,561 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,561 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,562 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,562 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,563 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,563 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,563 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,563 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,563 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,564 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:06,565 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 08:32:06,565 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:06,565 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:06,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:06,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:06,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:06,566 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:06,566 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:06,566 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:06,567 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 138 transitions [2019-12-27 08:32:06,568 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 08:32:06,605 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 08:32:06,605 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 08:32:06,608 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 08:32:06,617 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 08:32:06,643 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 08:32:06,644 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 08:32:06,647 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 08:32:06,656 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5180 [2019-12-27 08:32:06,656 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:09,171 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:32:09,325 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:09,344 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10723 [2019-12-27 08:32:09,344 INFO L214 etLargeBlockEncoding]: Total number of compositions: 110 [2019-12-27 08:32:09,345 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 49 transitions [2019-12-27 08:32:11,409 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 27215 states. [2019-12-27 08:32:11,410 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states. [2019-12-27 08:32:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:11,410 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:11,410 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:11,410 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:11,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:11,411 INFO L82 PathProgramCache]: Analyzing trace with hash 946624, now seen corresponding path program 1 times [2019-12-27 08:32:11,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:11,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496602852] [2019-12-27 08:32:11,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:11,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496602852] [2019-12-27 08:32:11,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:11,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:11,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131926487] [2019-12-27 08:32:11,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:11,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:11,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:11,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:11,446 INFO L87 Difference]: Start difference. First operand 27215 states. Second operand 3 states. [2019-12-27 08:32:11,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:11,914 INFO L93 Difference]: Finished difference Result 40707 states and 212933 transitions. [2019-12-27 08:32:11,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:11,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:11,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:12,189 INFO L225 Difference]: With dead ends: 40707 [2019-12-27 08:32:12,189 INFO L226 Difference]: Without dead ends: 37840 [2019-12-27 08:32:12,189 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:12,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37840 states. [2019-12-27 08:32:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37840 to 31312. [2019-12-27 08:32:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31312 states. [2019-12-27 08:32:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31312 states to 31312 states and 167892 transitions. [2019-12-27 08:32:15,158 INFO L78 Accepts]: Start accepts. Automaton has 31312 states and 167892 transitions. Word has length 3 [2019-12-27 08:32:15,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:15,158 INFO L462 AbstractCegarLoop]: Abstraction has 31312 states and 167892 transitions. [2019-12-27 08:32:15,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 31312 states and 167892 transitions. [2019-12-27 08:32:15,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:32:15,159 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:15,159 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:15,160 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:15,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1611095704, now seen corresponding path program 1 times [2019-12-27 08:32:15,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:15,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734597877] [2019-12-27 08:32:15,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:15,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734597877] [2019-12-27 08:32:15,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:15,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:15,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026251853] [2019-12-27 08:32:15,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:15,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:15,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:15,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:15,213 INFO L87 Difference]: Start difference. First operand 31312 states and 167892 transitions. Second operand 5 states. [2019-12-27 08:32:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:15,844 INFO L93 Difference]: Finished difference Result 61552 states and 310872 transitions. [2019-12-27 08:32:15,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:15,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:32:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:16,155 INFO L225 Difference]: With dead ends: 61552 [2019-12-27 08:32:16,155 INFO L226 Difference]: Without dead ends: 61417 [2019-12-27 08:32:16,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61417 states. [2019-12-27 08:32:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61417 to 31849. [2019-12-27 08:32:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31849 states. [2019-12-27 08:32:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31849 states to 31849 states and 171175 transitions. [2019-12-27 08:32:20,165 INFO L78 Accepts]: Start accepts. Automaton has 31849 states and 171175 transitions. Word has length 10 [2019-12-27 08:32:20,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:20,165 INFO L462 AbstractCegarLoop]: Abstraction has 31849 states and 171175 transitions. [2019-12-27 08:32:20,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 31849 states and 171175 transitions. [2019-12-27 08:32:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:20,166 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:20,166 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:20,166 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:20,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1422265713, now seen corresponding path program 1 times [2019-12-27 08:32:20,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:20,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667828019] [2019-12-27 08:32:20,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:20,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667828019] [2019-12-27 08:32:20,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:20,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:20,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911214303] [2019-12-27 08:32:20,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:20,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:20,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:20,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:20,205 INFO L87 Difference]: Start difference. First operand 31849 states and 171175 transitions. Second operand 5 states. [2019-12-27 08:32:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:20,673 INFO L93 Difference]: Finished difference Result 68818 states and 349292 transitions. [2019-12-27 08:32:20,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:20,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:32:20,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:20,940 INFO L225 Difference]: With dead ends: 68818 [2019-12-27 08:32:20,940 INFO L226 Difference]: Without dead ends: 68623 [2019-12-27 08:32:20,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68623 states. [2019-12-27 08:32:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68623 to 35815. [2019-12-27 08:32:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35815 states. [2019-12-27 08:32:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 193241 transitions. [2019-12-27 08:32:24,538 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 193241 transitions. Word has length 14 [2019-12-27 08:32:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:24,538 INFO L462 AbstractCegarLoop]: Abstraction has 35815 states and 193241 transitions. [2019-12-27 08:32:24,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 193241 transitions. [2019-12-27 08:32:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 08:32:24,539 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:24,540 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:24,540 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash 4042225, now seen corresponding path program 1 times [2019-12-27 08:32:24,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:24,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983857006] [2019-12-27 08:32:24,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:24,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983857006] [2019-12-27 08:32:24,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:24,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:24,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290193178] [2019-12-27 08:32:24,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:24,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:24,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:24,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:24,580 INFO L87 Difference]: Start difference. First operand 35815 states and 193241 transitions. Second operand 3 states. [2019-12-27 08:32:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:25,080 INFO L93 Difference]: Finished difference Result 11815 states and 46339 transitions. [2019-12-27 08:32:25,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:25,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 08:32:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:25,118 INFO L225 Difference]: With dead ends: 11815 [2019-12-27 08:32:25,119 INFO L226 Difference]: Without dead ends: 11815 [2019-12-27 08:32:25,122 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11815 states. [2019-12-27 08:32:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11815 to 11727. [2019-12-27 08:32:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11727 states. [2019-12-27 08:32:25,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11727 states to 11727 states and 46027 transitions. [2019-12-27 08:32:25,389 INFO L78 Accepts]: Start accepts. Automaton has 11727 states and 46027 transitions. Word has length 17 [2019-12-27 08:32:25,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:25,390 INFO L462 AbstractCegarLoop]: Abstraction has 11727 states and 46027 transitions. [2019-12-27 08:32:25,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 11727 states and 46027 transitions. [2019-12-27 08:32:25,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:25,391 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:25,391 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:25,391 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:25,391 INFO L82 PathProgramCache]: Analyzing trace with hash 443360276, now seen corresponding path program 1 times [2019-12-27 08:32:25,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:25,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676470004] [2019-12-27 08:32:25,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:25,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676470004] [2019-12-27 08:32:25,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589055992] [2019-12-27 08:32:25,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:25,546 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:25,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:25,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:25,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:25,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267136107] [2019-12-27 08:32:25,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:25,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:25,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:25,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:25,612 INFO L87 Difference]: Start difference. First operand 11727 states and 46027 transitions. Second operand 12 states. [2019-12-27 08:32:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:26,141 INFO L93 Difference]: Finished difference Result 28530 states and 109464 transitions. [2019-12-27 08:32:26,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:26,141 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 08:32:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:26,205 INFO L225 Difference]: With dead ends: 28530 [2019-12-27 08:32:26,205 INFO L226 Difference]: Without dead ends: 28458 [2019-12-27 08:32:26,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:26,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2019-12-27 08:32:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 11001. [2019-12-27 08:32:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11001 states. [2019-12-27 08:32:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11001 states to 11001 states and 43045 transitions. [2019-12-27 08:32:26,531 INFO L78 Accepts]: Start accepts. Automaton has 11001 states and 43045 transitions. Word has length 18 [2019-12-27 08:32:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:26,531 INFO L462 AbstractCegarLoop]: Abstraction has 11001 states and 43045 transitions. [2019-12-27 08:32:26,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 11001 states and 43045 transitions. [2019-12-27 08:32:26,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:26,533 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:26,533 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:26,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:26,735 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:26,740 INFO L82 PathProgramCache]: Analyzing trace with hash 945001287, now seen corresponding path program 1 times [2019-12-27 08:32:26,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:26,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611694139] [2019-12-27 08:32:26,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:26,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:26,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611694139] [2019-12-27 08:32:26,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:26,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:26,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793219131] [2019-12-27 08:32:26,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:26,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:26,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:26,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:26,802 INFO L87 Difference]: Start difference. First operand 11001 states and 43045 transitions. Second operand 7 states. [2019-12-27 08:32:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:28,063 INFO L93 Difference]: Finished difference Result 28862 states and 110813 transitions. [2019-12-27 08:32:28,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:28,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 08:32:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:28,129 INFO L225 Difference]: With dead ends: 28862 [2019-12-27 08:32:28,130 INFO L226 Difference]: Without dead ends: 28784 [2019-12-27 08:32:28,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28784 states. [2019-12-27 08:32:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28784 to 9913. [2019-12-27 08:32:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9913 states. [2019-12-27 08:32:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9913 states to 9913 states and 38486 transitions. [2019-12-27 08:32:28,430 INFO L78 Accepts]: Start accepts. Automaton has 9913 states and 38486 transitions. Word has length 18 [2019-12-27 08:32:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:28,430 INFO L462 AbstractCegarLoop]: Abstraction has 9913 states and 38486 transitions. [2019-12-27 08:32:28,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 9913 states and 38486 transitions. [2019-12-27 08:32:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:28,432 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:28,432 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:28,432 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:28,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1251122520, now seen corresponding path program 1 times [2019-12-27 08:32:28,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:28,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703873159] [2019-12-27 08:32:28,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:28,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703873159] [2019-12-27 08:32:28,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:28,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:28,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375299982] [2019-12-27 08:32:28,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:28,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:28,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:28,471 INFO L87 Difference]: Start difference. First operand 9913 states and 38486 transitions. Second operand 5 states. [2019-12-27 08:32:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:28,699 INFO L93 Difference]: Finished difference Result 21922 states and 84447 transitions. [2019-12-27 08:32:28,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:28,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 08:32:28,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:28,763 INFO L225 Difference]: With dead ends: 21922 [2019-12-27 08:32:28,763 INFO L226 Difference]: Without dead ends: 21850 [2019-12-27 08:32:28,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21850 states. [2019-12-27 08:32:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21850 to 11607. [2019-12-27 08:32:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11607 states. [2019-12-27 08:32:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11607 states to 11607 states and 45534 transitions. [2019-12-27 08:32:29,046 INFO L78 Accepts]: Start accepts. Automaton has 11607 states and 45534 transitions. Word has length 18 [2019-12-27 08:32:29,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:29,046 INFO L462 AbstractCegarLoop]: Abstraction has 11607 states and 45534 transitions. [2019-12-27 08:32:29,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11607 states and 45534 transitions. [2019-12-27 08:32:29,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:29,048 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:29,048 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:29,049 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1715192443, now seen corresponding path program 1 times [2019-12-27 08:32:29,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:29,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610821439] [2019-12-27 08:32:29,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 08:32:29,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610821439] [2019-12-27 08:32:29,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993081294] [2019-12-27 08:32:29,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:29,221 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:29,222 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 08:32:29,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:29,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:29,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260123093] [2019-12-27 08:32:29,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:29,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:29,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:29,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:29,298 INFO L87 Difference]: Start difference. First operand 11607 states and 45534 transitions. Second operand 12 states. [2019-12-27 08:32:30,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:30,023 INFO L93 Difference]: Finished difference Result 30386 states and 117281 transitions. [2019-12-27 08:32:30,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:30,023 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 08:32:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:30,095 INFO L225 Difference]: With dead ends: 30386 [2019-12-27 08:32:30,095 INFO L226 Difference]: Without dead ends: 30314 [2019-12-27 08:32:30,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30314 states. [2019-12-27 08:32:30,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30314 to 11357. [2019-12-27 08:32:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11357 states. [2019-12-27 08:32:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11357 states to 11357 states and 44521 transitions. [2019-12-27 08:32:30,428 INFO L78 Accepts]: Start accepts. Automaton has 11357 states and 44521 transitions. Word has length 22 [2019-12-27 08:32:30,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:30,429 INFO L462 AbstractCegarLoop]: Abstraction has 11357 states and 44521 transitions. [2019-12-27 08:32:30,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:30,429 INFO L276 IsEmpty]: Start isEmpty. Operand 11357 states and 44521 transitions. [2019-12-27 08:32:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:30,432 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:30,432 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:30,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:30,635 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:30,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:30,636 INFO L82 PathProgramCache]: Analyzing trace with hash 677055142, now seen corresponding path program 1 times [2019-12-27 08:32:30,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:30,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976205225] [2019-12-27 08:32:30,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:30,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976205225] [2019-12-27 08:32:30,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390005404] [2019-12-27 08:32:30,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:30,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:30,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:30,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:30,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:30,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050960461] [2019-12-27 08:32:30,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:30,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:30,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:30,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:30,880 INFO L87 Difference]: Start difference. First operand 11357 states and 44521 transitions. Second operand 12 states. [2019-12-27 08:32:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:31,415 INFO L93 Difference]: Finished difference Result 31062 states and 120131 transitions. [2019-12-27 08:32:31,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:31,416 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 08:32:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:31,488 INFO L225 Difference]: With dead ends: 31062 [2019-12-27 08:32:31,488 INFO L226 Difference]: Without dead ends: 30990 [2019-12-27 08:32:31,489 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30990 states. [2019-12-27 08:32:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30990 to 11439. [2019-12-27 08:32:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11439 states. [2019-12-27 08:32:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11439 states to 11439 states and 44850 transitions. [2019-12-27 08:32:31,810 INFO L78 Accepts]: Start accepts. Automaton has 11439 states and 44850 transitions. Word has length 22 [2019-12-27 08:32:31,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:31,810 INFO L462 AbstractCegarLoop]: Abstraction has 11439 states and 44850 transitions. [2019-12-27 08:32:31,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:31,810 INFO L276 IsEmpty]: Start isEmpty. Operand 11439 states and 44850 transitions. [2019-12-27 08:32:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:31,813 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:31,813 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:32,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:32,017 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:32,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1396745761, now seen corresponding path program 1 times [2019-12-27 08:32:32,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:32,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90794799] [2019-12-27 08:32:32,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:32,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90794799] [2019-12-27 08:32:32,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:32,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:32,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811938384] [2019-12-27 08:32:32,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:32,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:32,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:32,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:32,092 INFO L87 Difference]: Start difference. First operand 11439 states and 44850 transitions. Second operand 7 states. [2019-12-27 08:32:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:32,689 INFO L93 Difference]: Finished difference Result 31058 states and 120097 transitions. [2019-12-27 08:32:32,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:32,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 08:32:32,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:32,758 INFO L225 Difference]: With dead ends: 31058 [2019-12-27 08:32:32,759 INFO L226 Difference]: Without dead ends: 30980 [2019-12-27 08:32:32,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2019-12-27 08:32:33,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 11093. [2019-12-27 08:32:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11093 states. [2019-12-27 08:32:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11093 states to 11093 states and 43368 transitions. [2019-12-27 08:32:33,076 INFO L78 Accepts]: Start accepts. Automaton has 11093 states and 43368 transitions. Word has length 22 [2019-12-27 08:32:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:33,076 INFO L462 AbstractCegarLoop]: Abstraction has 11093 states and 43368 transitions. [2019-12-27 08:32:33,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:33,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11093 states and 43368 transitions. [2019-12-27 08:32:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:33,080 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:33,080 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:33,080 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:33,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:33,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1396448409, now seen corresponding path program 1 times [2019-12-27 08:32:33,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:33,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41206571] [2019-12-27 08:32:33,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:33,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41206571] [2019-12-27 08:32:33,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:33,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:33,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373322571] [2019-12-27 08:32:33,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:33,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:33,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:33,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:33,156 INFO L87 Difference]: Start difference. First operand 11093 states and 43368 transitions. Second operand 7 states. [2019-12-27 08:32:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:33,703 INFO L93 Difference]: Finished difference Result 30992 states and 119819 transitions. [2019-12-27 08:32:33,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:33,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 08:32:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:33,798 INFO L225 Difference]: With dead ends: 30992 [2019-12-27 08:32:33,799 INFO L226 Difference]: Without dead ends: 30914 [2019-12-27 08:32:33,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2019-12-27 08:32:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 10835. [2019-12-27 08:32:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2019-12-27 08:32:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 42198 transitions. [2019-12-27 08:32:34,134 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 42198 transitions. Word has length 22 [2019-12-27 08:32:34,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:34,135 INFO L462 AbstractCegarLoop]: Abstraction has 10835 states and 42198 transitions. [2019-12-27 08:32:34,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 42198 transitions. [2019-12-27 08:32:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:34,138 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:34,138 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:34,138 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:34,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:34,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2032188915, now seen corresponding path program 1 times [2019-12-27 08:32:34,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:34,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870058181] [2019-12-27 08:32:34,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-27 08:32:34,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870058181] [2019-12-27 08:32:34,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:34,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:34,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888685984] [2019-12-27 08:32:34,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:34,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:34,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:34,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:34,197 INFO L87 Difference]: Start difference. First operand 10835 states and 42198 transitions. Second operand 5 states. [2019-12-27 08:32:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:34,435 INFO L93 Difference]: Finished difference Result 22192 states and 85781 transitions. [2019-12-27 08:32:34,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:34,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-27 08:32:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:34,481 INFO L225 Difference]: With dead ends: 22192 [2019-12-27 08:32:34,481 INFO L226 Difference]: Without dead ends: 22108 [2019-12-27 08:32:34,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22108 states. [2019-12-27 08:32:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22108 to 12085. [2019-12-27 08:32:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12085 states. [2019-12-27 08:32:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12085 states to 12085 states and 47309 transitions. [2019-12-27 08:32:34,944 INFO L78 Accepts]: Start accepts. Automaton has 12085 states and 47309 transitions. Word has length 22 [2019-12-27 08:32:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:34,945 INFO L462 AbstractCegarLoop]: Abstraction has 12085 states and 47309 transitions. [2019-12-27 08:32:34,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:34,945 INFO L276 IsEmpty]: Start isEmpty. Operand 12085 states and 47309 transitions. [2019-12-27 08:32:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:34,947 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:34,947 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:34,947 INFO L410 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2038302932, now seen corresponding path program 1 times [2019-12-27 08:32:34,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:34,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257432123] [2019-12-27 08:32:34,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:34,973 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:34,974 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:34,974 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:34,974 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 08:32:34,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,989 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,989 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,998 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:34,999 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,005 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,008 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,008 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,009 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,010 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,020 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,020 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,021 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,023 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,023 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,023 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,024 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,024 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,024 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,024 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,024 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,026 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,027 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,029 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,029 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,030 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,034 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,038 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,039 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,040 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,040 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:35,044 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 08:32:35,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:35,044 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:35,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:35,044 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:35,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:35,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:35,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:35,045 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:35,047 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 162 transitions [2019-12-27 08:32:35,047 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 08:32:35,082 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 08:32:35,082 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 08:32:35,088 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 08:32:35,104 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 08:32:35,138 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 08:32:35,138 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 08:32:35,144 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 08:32:35,159 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7304 [2019-12-27 08:32:35,159 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:37,932 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-12-27 08:32:38,292 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:32:38,406 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:38,414 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14503 [2019-12-27 08:32:38,415 INFO L214 etLargeBlockEncoding]: Total number of compositions: 123 [2019-12-27 08:32:38,415 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 60 transitions [2019-12-27 08:33:34,602 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 186623 states. [2019-12-27 08:33:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 186623 states. [2019-12-27 08:33:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:33:34,602 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:33:34,602 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:33:34,602 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:33:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:33:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1258960, now seen corresponding path program 1 times [2019-12-27 08:33:34,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:33:34,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237630320] [2019-12-27 08:33:34,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:33:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:33:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:33:34,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237630320] [2019-12-27 08:33:34,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:33:34,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:33:34,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798689961] [2019-12-27 08:33:34,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:33:34,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:33:34,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:33:34,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:33:34,625 INFO L87 Difference]: Start difference. First operand 186623 states. Second operand 3 states. [2019-12-27 08:33:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:33:37,266 INFO L93 Difference]: Finished difference Result 242286 states and 1521279 transitions. [2019-12-27 08:33:37,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:33:37,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:33:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:33:45,498 INFO L225 Difference]: With dead ends: 242286 [2019-12-27 08:33:45,498 INFO L226 Difference]: Without dead ends: 226558 [2019-12-27 08:33:45,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:33:47,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226558 states. [2019-12-27 08:33:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226558 to 198682. [2019-12-27 08:33:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198682 states. [2019-12-27 08:34:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198682 states to 198682 states and 1265854 transitions. [2019-12-27 08:34:03,602 INFO L78 Accepts]: Start accepts. Automaton has 198682 states and 1265854 transitions. Word has length 3 [2019-12-27 08:34:03,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:34:03,603 INFO L462 AbstractCegarLoop]: Abstraction has 198682 states and 1265854 transitions. [2019-12-27 08:34:03,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:34:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 198682 states and 1265854 transitions. [2019-12-27 08:34:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:34:03,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:34:03,603 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:34:03,603 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:34:03,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:34:03,603 INFO L82 PathProgramCache]: Analyzing trace with hash 540627390, now seen corresponding path program 1 times [2019-12-27 08:34:03,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:34:03,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779386427] [2019-12-27 08:34:03,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:34:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:34:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:34:03,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779386427] [2019-12-27 08:34:03,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:34:03,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:34:03,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680709714] [2019-12-27 08:34:03,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:34:03,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:34:03,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:34:03,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:34:03,645 INFO L87 Difference]: Start difference. First operand 198682 states and 1265854 transitions. Second operand 5 states. [2019-12-27 08:34:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:34:24,821 INFO L93 Difference]: Finished difference Result 405850 states and 2493584 transitions. [2019-12-27 08:34:24,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:34:24,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:34:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:34:35,454 INFO L225 Difference]: With dead ends: 405850 [2019-12-27 08:34:35,454 INFO L226 Difference]: Without dead ends: 405418 [2019-12-27 08:34:35,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:34:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405418 states. [2019-12-27 08:34:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405418 to 220810. [2019-12-27 08:34:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220810 states. [2019-12-27 08:35:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220810 states to 220810 states and 1422135 transitions. [2019-12-27 08:35:00,843 INFO L78 Accepts]: Start accepts. Automaton has 220810 states and 1422135 transitions. Word has length 10 [2019-12-27 08:35:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:35:00,844 INFO L462 AbstractCegarLoop]: Abstraction has 220810 states and 1422135 transitions. [2019-12-27 08:35:00,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:35:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 220810 states and 1422135 transitions. [2019-12-27 08:35:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:35:00,845 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:35:00,845 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:35:00,845 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:35:00,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:35:00,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1439547760, now seen corresponding path program 1 times [2019-12-27 08:35:00,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:35:00,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647194992] [2019-12-27 08:35:00,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:35:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:35:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:35:00,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647194992] [2019-12-27 08:35:00,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:35:00,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:35:00,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048072671] [2019-12-27 08:35:00,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:35:00,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:35:00,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:35:00,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:35:00,881 INFO L87 Difference]: Start difference. First operand 220810 states and 1422135 transitions. Second operand 5 states. Received shutdown request... [2019-12-27 08:35:10,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:35:10,442 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 08:35:10,446 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 08:35:10,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:35:10 BasicIcfg [2019-12-27 08:35:10,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:35:10,448 INFO L168 Benchmark]: Toolchain (without parser) took 198781.64 ms. Allocated memory was 136.3 MB in the beginning and 5.2 GB in the end (delta: 5.1 GB). Free memory was 99.5 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.9 GB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,448 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.50 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 159.1 MB in the end (delta: -60.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.48 ms. Allocated memory is still 200.8 MB. Free memory was 159.1 MB in the beginning and 157.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,452 INFO L168 Benchmark]: Boogie Preprocessor took 38.27 ms. Allocated memory is still 200.8 MB. Free memory was 157.0 MB in the beginning and 155.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,452 INFO L168 Benchmark]: RCFGBuilder took 505.48 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 133.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,453 INFO L168 Benchmark]: TraceAbstraction took 197534.72 ms. Allocated memory was 200.8 MB in the beginning and 5.2 GB in the end (delta: 5.0 GB). Free memory was 132.8 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 5.9 GB. Max. memory is 7.1 GB. [2019-12-27 08:35:10,455 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.50 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 159.1 MB in the end (delta: -60.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.48 ms. Allocated memory is still 200.8 MB. Free memory was 159.1 MB in the beginning and 157.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.27 ms. Allocated memory is still 200.8 MB. Free memory was 157.0 MB in the beginning and 155.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.48 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 133.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197534.72 ms. Allocated memory was 200.8 MB in the beginning and 5.2 GB in the end (delta: 5.0 GB). Free memory was 132.8 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 5.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 69 ProgramPointsBefore, 15 ProgramPointsAfterwards, 66 TransitionsBefore, 12 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 519 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 729 CheckedPairsTotal, 57 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 95 ProgramPointsBefore, 32 ProgramPointsAfterwards, 90 TransitionsBefore, 29 TransitionsAfterwards, 2024 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 1055 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2838 CheckedPairsTotal, 69 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 121 ProgramPointsBefore, 44 ProgramPointsAfterwards, 114 TransitionsBefore, 40 TransitionsAfterwards, 3420 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1751 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 6734 CheckedPairsTotal, 89 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.7s, 147 ProgramPointsBefore, 54 ProgramPointsAfterwards, 138 TransitionsBefore, 49 TransitionsAfterwards, 5180 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 2756 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 10723 CheckedPairsTotal, 110 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.3s, 173 ProgramPointsBefore, 66 ProgramPointsAfterwards, 162 TransitionsBefore, 60 TransitionsAfterwards, 7304 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 3412 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 14503 CheckedPairsTotal, 123 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (220810states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (146102 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Result: TIMEOUT, OverallTime: 155.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 52.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 404 SDslu, 216 SDs, 0 SdLazy, 265 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220810occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 43.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 212484 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown