/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 14:44:24,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 14:44:24,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 14:44:24,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 14:44:24,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 14:44:24,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 14:44:24,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 14:44:24,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 14:44:24,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 14:44:24,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 14:44:24,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 14:44:24,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 14:44:24,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 14:44:24,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 14:44:24,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 14:44:24,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 14:44:24,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 14:44:24,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 14:44:24,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 14:44:24,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 14:44:24,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 14:44:24,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 14:44:24,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 14:44:24,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 14:44:24,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 14:44:24,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 14:44:24,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 14:44:24,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 14:44:24,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 14:44:24,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 14:44:24,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 14:44:24,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 14:44:24,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 14:44:24,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 14:44:24,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 14:44:24,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 14:44:24,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 14:44:24,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 14:44:24,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 14:44:24,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 14:44:24,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 14:44:24,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 14:44:24,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 14:44:24,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 14:44:24,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 14:44:24,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 14:44:24,408 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 14:44:24,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 14:44:24,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 14:44:24,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 14:44:24,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 14:44:24,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 14:44:24,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 14:44:24,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 14:44:24,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 14:44:24,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 14:44:24,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 14:44:24,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 14:44:24,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 14:44:24,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 14:44:24,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 14:44:24,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 14:44:24,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 14:44:24,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 14:44:24,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 14:44:24,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 14:44:24,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 14:44:24,415 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 14:44:24,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 14:44:24,415 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 14:44:24,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 14:44:24,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 14:44:24,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 14:44:24,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 14:44:24,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 14:44:24,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 14:44:24,762 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 14:44:24,763 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-2.i [2020-10-09 14:44:24,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf018b3f/113008e4f3db417b9d8f9840681d0862/FLAGcdfc7004d [2020-10-09 14:44:25,447 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 14:44:25,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i [2020-10-09 14:44:25,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf018b3f/113008e4f3db417b9d8f9840681d0862/FLAGcdfc7004d [2020-10-09 14:44:25,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf018b3f/113008e4f3db417b9d8f9840681d0862 [2020-10-09 14:44:25,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 14:44:25,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 14:44:25,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 14:44:25,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 14:44:25,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 14:44:25,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:44:25" (1/1) ... [2020-10-09 14:44:25,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f18bf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:25, skipping insertion in model container [2020-10-09 14:44:25,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:44:25" (1/1) ... [2020-10-09 14:44:25,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 14:44:25,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 14:44:26,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:44:26,400 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 14:44:26,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:44:26,589 INFO L208 MainTranslator]: Completed translation [2020-10-09 14:44:26,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26 WrapperNode [2020-10-09 14:44:26,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 14:44:26,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 14:44:26,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 14:44:26,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 14:44:26,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 14:44:26,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 14:44:26,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 14:44:26,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 14:44:26,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (1/1) ... [2020-10-09 14:44:26,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 14:44:26,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 14:44:26,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 14:44:26,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 14:44:26,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (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 [2020-10-09 14:44:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-09 14:44:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-09 14:44:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-09 14:44:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-09 14:44:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 14:44:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 14:44:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 14:44:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 14:44:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-09 14:44:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-09 14:44:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 14:44:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 14:44:26,778 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 14:44:27,361 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 14:44:27,362 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-09 14:44:27,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:44:27 BoogieIcfgContainer [2020-10-09 14:44:27,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 14:44:27,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 14:44:27,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 14:44:27,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 14:44:27,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 02:44:25" (1/3) ... [2020-10-09 14:44:27,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7839f3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:44:27, skipping insertion in model container [2020-10-09 14:44:27,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:26" (2/3) ... [2020-10-09 14:44:27,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7839f3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:44:27, skipping insertion in model container [2020-10-09 14:44:27,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:44:27" (3/3) ... [2020-10-09 14:44:27,374 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2020-10-09 14:44:27,387 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 14:44:27,395 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 14:44:27,397 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 14:44:27,433 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,434 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,434 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,434 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,436 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,436 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,436 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,453 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,453 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,455 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,456 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,456 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,456 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,457 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,458 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,458 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,460 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,460 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,460 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,460 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,461 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,461 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,461 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,470 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,470 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,470 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,470 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,480 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,481 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,482 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,483 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,483 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,483 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,483 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,484 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:27,511 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 14:44:27,534 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 14:44:27,534 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 14:44:27,534 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 14:44:27,534 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 14:44:27,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 14:44:27,535 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 14:44:27,535 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 14:44:27,535 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 14:44:27,552 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 138 transitions, 298 flow [2020-10-09 14:44:27,622 INFO L129 PetriNetUnfolder]: 11/138 cut-off events. [2020-10-09 14:44:27,622 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 14:44:27,631 INFO L80 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 138 events. 11/138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 342 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2020-10-09 14:44:27,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 138 transitions, 298 flow [2020-10-09 14:44:27,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 126 transitions, 264 flow [2020-10-09 14:44:27,670 INFO L129 PetriNetUnfolder]: 6/101 cut-off events. [2020-10-09 14:44:27,671 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 14:44:27,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:27,672 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:27,673 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1945168569, now seen corresponding path program 1 times [2020-10-09 14:44:27,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:27,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089193153] [2020-10-09 14:44:27,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:27,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:44:27,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:27,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:27,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089193153] [2020-10-09 14:44:27,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:27,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 14:44:27,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831561961] [2020-10-09 14:44:27,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 14:44:27,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:27,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 14:44:27,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 14:44:28,041 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 138 [2020-10-09 14:44:28,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 126 transitions, 264 flow. Second operand 3 states. [2020-10-09 14:44:28,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:28,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 138 [2020-10-09 14:44:28,046 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:28,169 INFO L129 PetriNetUnfolder]: 28/476 cut-off events. [2020-10-09 14:44:28,169 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2020-10-09 14:44:28,175 INFO L80 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 476 events. 28/476 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1981 event pairs, 2 based on Foata normal form. 45/485 useless extension candidates. Maximal degree in co-relation 487. Up to 23 conditions per place. [2020-10-09 14:44:28,179 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 7 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2020-10-09 14:44:28,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 284 flow [2020-10-09 14:44:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:44:28,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:44:28,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2020-10-09 14:44:28,198 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9685990338164251 [2020-10-09 14:44:28,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2020-10-09 14:44:28,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2020-10-09 14:44:28,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:28,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2020-10-09 14:44:28,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:44:28,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:44:28,216 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:44:28,219 INFO L185 Difference]: Start difference. First operand has 122 places, 126 transitions, 264 flow. Second operand 3 states and 401 transitions. [2020-10-09 14:44:28,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 284 flow [2020-10-09 14:44:28,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 125 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 14:44:28,230 INFO L241 Difference]: Finished difference. Result has 122 places, 125 transitions, 282 flow [2020-10-09 14:44:28,233 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=122, PETRI_TRANSITIONS=125} [2020-10-09 14:44:28,234 INFO L341 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2020-10-09 14:44:28,235 INFO L481 AbstractCegarLoop]: Abstraction has has 122 places, 125 transitions, 282 flow [2020-10-09 14:44:28,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 14:44:28,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:28,235 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:28,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 14:44:28,457 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:28,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:28,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1440008092, now seen corresponding path program 1 times [2020-10-09 14:44:28,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:28,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136739874] [2020-10-09 14:44:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:28,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:44:28,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:28,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:28,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136739874] [2020-10-09 14:44:28,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:28,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 14:44:28,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391613618] [2020-10-09 14:44:28,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:28,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:28,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:28,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:28,708 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 138 [2020-10-09 14:44:28,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 125 transitions, 282 flow. Second operand 4 states. [2020-10-09 14:44:28,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:28,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 138 [2020-10-09 14:44:28,709 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:28,815 INFO L129 PetriNetUnfolder]: 28/592 cut-off events. [2020-10-09 14:44:28,815 INFO L130 PetriNetUnfolder]: For 87/130 co-relation queries the response was YES. [2020-10-09 14:44:28,821 INFO L80 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 592 events. 28/592 cut-off events. For 87/130 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2068 event pairs, 0 based on Foata normal form. 10/563 useless extension candidates. Maximal degree in co-relation 621. Up to 36 conditions per place. [2020-10-09 14:44:28,825 INFO L132 encePairwiseOnDemand]: 132/138 looper letters, 9 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2020-10-09 14:44:28,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 127 transitions, 316 flow [2020-10-09 14:44:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:44:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:44:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2020-10-09 14:44:28,829 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9396135265700483 [2020-10-09 14:44:28,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2020-10-09 14:44:28,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2020-10-09 14:44:28,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:28,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2020-10-09 14:44:28,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:44:28,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:44:28,833 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:44:28,833 INFO L185 Difference]: Start difference. First operand has 122 places, 125 transitions, 282 flow. Second operand 3 states and 389 transitions. [2020-10-09 14:44:28,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 127 transitions, 316 flow [2020-10-09 14:44:28,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 127 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 14:44:28,841 INFO L241 Difference]: Finished difference. Result has 124 places, 127 transitions, 306 flow [2020-10-09 14:44:28,842 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2020-10-09 14:44:28,843 INFO L341 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2020-10-09 14:44:28,843 INFO L481 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 306 flow [2020-10-09 14:44:28,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:28,843 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:28,844 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:29,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 14:44:29,060 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:29,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:29,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2070190818, now seen corresponding path program 1 times [2020-10-09 14:44:29,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:29,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098790281] [2020-10-09 14:44:29,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:29,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 14:44:29,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:29,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:29,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098790281] [2020-10-09 14:44:29,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:29,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-09 14:44:29,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665800976] [2020-10-09 14:44:29,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:29,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:29,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:29,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:29,281 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 138 [2020-10-09 14:44:29,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 306 flow. Second operand 4 states. [2020-10-09 14:44:29,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:29,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 138 [2020-10-09 14:44:29,282 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:29,407 INFO L129 PetriNetUnfolder]: 28/580 cut-off events. [2020-10-09 14:44:29,407 INFO L130 PetriNetUnfolder]: For 38/55 co-relation queries the response was YES. [2020-10-09 14:44:29,411 INFO L80 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 580 events. 28/580 cut-off events. For 38/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1998 event pairs, 0 based on Foata normal form. 4/554 useless extension candidates. Maximal degree in co-relation 632. Up to 37 conditions per place. [2020-10-09 14:44:29,414 INFO L132 encePairwiseOnDemand]: 133/138 looper letters, 7 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2020-10-09 14:44:29,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 130 transitions, 334 flow [2020-10-09 14:44:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 14:44:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 14:44:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 512 transitions. [2020-10-09 14:44:29,417 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2020-10-09 14:44:29,417 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 512 transitions. [2020-10-09 14:44:29,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 512 transitions. [2020-10-09 14:44:29,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:29,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 512 transitions. [2020-10-09 14:44:29,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 14:44:29,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 14:44:29,422 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 14:44:29,422 INFO L185 Difference]: Start difference. First operand has 124 places, 127 transitions, 306 flow. Second operand 4 states and 512 transitions. [2020-10-09 14:44:29,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 130 transitions, 334 flow [2020-10-09 14:44:29,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 130 transitions, 322 flow, removed 2 selfloop flow, removed 2 redundant places. [2020-10-09 14:44:29,428 INFO L241 Difference]: Finished difference. Result has 127 places, 130 transitions, 322 flow [2020-10-09 14:44:29,429 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=127, PETRI_TRANSITIONS=130} [2020-10-09 14:44:29,429 INFO L341 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2020-10-09 14:44:29,429 INFO L481 AbstractCegarLoop]: Abstraction has has 127 places, 130 transitions, 322 flow [2020-10-09 14:44:29,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:29,430 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:29,430 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:29,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 14:44:29,645 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:29,646 INFO L82 PathProgramCache]: Analyzing trace with hash 63058072, now seen corresponding path program 1 times [2020-10-09 14:44:29,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:29,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136470573] [2020-10-09 14:44:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:29,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:44:29,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:29,799 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 14:44:29,800 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:29,804 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:29,804 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:29,805 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-10-09 14:44:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:29,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:29,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136470573] [2020-10-09 14:44:29,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:29,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 14:44:29,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893119118] [2020-10-09 14:44:29,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:29,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:29,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:29,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:29,943 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 138 [2020-10-09 14:44:29,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 130 transitions, 322 flow. Second operand 4 states. [2020-10-09 14:44:29,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:29,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 138 [2020-10-09 14:44:29,944 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:30,031 INFO L129 PetriNetUnfolder]: 14/399 cut-off events. [2020-10-09 14:44:30,031 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2020-10-09 14:44:30,033 INFO L80 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 399 events. 14/399 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1130 event pairs, 0 based on Foata normal form. 11/389 useless extension candidates. Maximal degree in co-relation 424. Up to 15 conditions per place. [2020-10-09 14:44:30,035 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 2 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2020-10-09 14:44:30,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 126 transitions, 320 flow [2020-10-09 14:44:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:44:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:44:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2020-10-09 14:44:30,037 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9396135265700483 [2020-10-09 14:44:30,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2020-10-09 14:44:30,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2020-10-09 14:44:30,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:30,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2020-10-09 14:44:30,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:44:30,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:44:30,040 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:44:30,040 INFO L185 Difference]: Start difference. First operand has 127 places, 130 transitions, 322 flow. Second operand 3 states and 389 transitions. [2020-10-09 14:44:30,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 126 transitions, 320 flow [2020-10-09 14:44:30,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:30,044 INFO L241 Difference]: Finished difference. Result has 126 places, 126 transitions, 314 flow [2020-10-09 14:44:30,045 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=126, PETRI_TRANSITIONS=126} [2020-10-09 14:44:30,045 INFO L341 CegarLoopForPetriNet]: 122 programPoint places, 4 predicate places. [2020-10-09 14:44:30,045 INFO L481 AbstractCegarLoop]: Abstraction has has 126 places, 126 transitions, 314 flow [2020-10-09 14:44:30,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:30,046 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:30,046 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:30,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 14:44:30,262 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:30,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1239398404, now seen corresponding path program 1 times [2020-10-09 14:44:30,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:30,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299920231] [2020-10-09 14:44:30,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:30,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:30,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299920231] [2020-10-09 14:44:30,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1749848040] [2020-10-09 14:44:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-09 14:44:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:30,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:30,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288913250] [2020-10-09 14:44:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-09 14:44:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:30,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:30,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:30,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-10-09 14:44:30,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2020-10-09 14:44:30,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794134414] [2020-10-09 14:44:30,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 14:44:30,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:30,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 14:44:30,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-09 14:44:31,203 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 138 [2020-10-09 14:44:31,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 126 transitions, 314 flow. Second operand 8 states. [2020-10-09 14:44:31,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:31,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 138 [2020-10-09 14:44:31,204 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:31,364 INFO L129 PetriNetUnfolder]: 20/589 cut-off events. [2020-10-09 14:44:31,365 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2020-10-09 14:44:31,367 INFO L80 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 589 events. 20/589 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1833 event pairs, 0 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 709. Up to 28 conditions per place. [2020-10-09 14:44:31,370 INFO L132 encePairwiseOnDemand]: 131/138 looper letters, 18 selfloop transitions, 13 changer transitions 0/142 dead transitions. [2020-10-09 14:44:31,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 142 transitions, 436 flow [2020-10-09 14:44:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 14:44:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 14:44:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1128 transitions. [2020-10-09 14:44:31,374 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9082125603864735 [2020-10-09 14:44:31,374 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1128 transitions. [2020-10-09 14:44:31,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1128 transitions. [2020-10-09 14:44:31,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:31,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1128 transitions. [2020-10-09 14:44:31,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 14:44:31,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 14:44:31,380 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 14:44:31,380 INFO L185 Difference]: Start difference. First operand has 126 places, 126 transitions, 314 flow. Second operand 9 states and 1128 transitions. [2020-10-09 14:44:31,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 142 transitions, 436 flow [2020-10-09 14:44:31,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 142 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:31,393 INFO L241 Difference]: Finished difference. Result has 136 places, 136 transitions, 403 flow [2020-10-09 14:44:31,394 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=403, PETRI_PLACES=136, PETRI_TRANSITIONS=136} [2020-10-09 14:44:31,394 INFO L341 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2020-10-09 14:44:31,394 INFO L481 AbstractCegarLoop]: Abstraction has has 136 places, 136 transitions, 403 flow [2020-10-09 14:44:31,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 14:44:31,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:31,395 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:31,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-09 14:44:31,999 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:31,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:32,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1433653210, now seen corresponding path program 1 times [2020-10-09 14:44:32,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:32,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95848537] [2020-10-09 14:44:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:32,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 59 conjunts are in the unsatisfiable core [2020-10-09 14:44:32,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:32,195 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-09 14:44:32,195 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:32,583 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-10-09 14:44:32,583 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:32,625 INFO L625 ElimStorePlain]: treesize reduction 13, result has 82.2 percent of original size [2020-10-09 14:44:32,629 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:32,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:59 [2020-10-09 14:44:32,771 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:32,772 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2020-10-09 14:44:32,811 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:32,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:32,878 INFO L545 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-09 14:44:32,934 INFO L625 ElimStorePlain]: treesize reduction 25, result has 71.9 percent of original size [2020-10-09 14:44:32,941 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,954 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,955 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-09 14:44:32,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:64 [2020-10-09 14:44:32,963 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,969 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:32,973 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,048 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,184 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,190 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,193 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,334 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,457 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,464 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,575 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,581 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,688 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,800 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:33,929 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,043 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,046 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,048 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,148 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,150 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,274 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,282 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,386 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,390 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,497 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,623 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,734 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,738 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:34,740 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:35,223 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:35,224 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 32 [2020-10-09 14:44:35,225 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:35,239 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:35,241 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:35,242 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2020-10-09 14:44:35,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:35,370 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:35,593 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:36,068 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:39,567 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 148 [2020-10-09 14:44:44,657 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-09 14:44:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:45,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:48,898 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) is different from false [2020-10-09 14:44:50,476 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* |c_t1Thread1of1ForFork0_inc_top_#t~post30| 4))) 4294967296)))) is different from false [2020-10-09 14:44:52,152 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) is different from false [2020-10-09 14:44:52,164 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 152 [2020-10-09 14:44:52,167 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-09 14:44:52,224 INFO L625 ElimStorePlain]: treesize reduction 105, result has 23.9 percent of original size [2020-10-09 14:44:52,225 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-09 14:44:52,226 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:46, output treesize:21 [2020-10-09 14:44:53,209 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:53,243 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:53,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95848537] [2020-10-09 14:44:53,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:53,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26, 23] imperfect sequences [] total 47 [2020-10-09 14:44:53,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324668934] [2020-10-09 14:44:53,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-09 14:44:53,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:53,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-09 14:44:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1752, Unknown=3, NotChecked=258, Total=2162 [2020-10-09 14:44:55,827 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 138 [2020-10-09 14:44:55,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 136 transitions, 403 flow. Second operand 47 states. [2020-10-09 14:44:55,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:55,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 138 [2020-10-09 14:44:55,830 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:57,925 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-09 14:44:58,341 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-09 14:44:58,746 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-09 14:45:01,015 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse1 (* c_~top~0 4)) (.cse5 (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296))) (let ((.cse3 (<= 400 .cse5)) (.cse2 (< .cse5 400)) (.cse4 (select .cse0 (+ |c_~#arr~0.offset| .cse1)))) (and (= c_~top~0 |c_t1Thread1of1ForFork0_push_#t~ret35|) (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (<= (div |c_t1Thread1of1ForFork0_push_#in~x| (- 4294967296)) (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x| (- 1)) 399) 4294967296)) (not (= 4294967294 (mod (select .cse0 (+ |c_~#arr~0.offset| .cse1 (- 4))) 4294967296))) (or (and (= c_t1Thread1of1ForFork0_assume_abort_if_not_~cond 1) .cse2) (and (= c_t1Thread1of1ForFork0_assume_abort_if_not_~cond 0) .cse3)) (< .cse4 4294967296) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) .cse2 (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (< |c_t1Thread1of1ForFork0_push_#in~x| 4294967296) (<= (div c_t1Thread1of1ForFork0_push_~x (- 4294967296)) (div (+ (* c_t1Thread1of1ForFork0_push_~x (- 1)) 399) 4294967296)) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 0) .cse3) (and .cse2 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 1))) (<= 0 c_t1Thread1of1ForFork0_push_~x) (< c_t1Thread1of1ForFork0_push_~x 4294967296) (= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res|) (<= 0 .cse4) (= |c_~#arr~0.offset| 0) (<= (div .cse4 (- 4294967296)) (div (+ (* .cse4 (- 1)) 399) 4294967296)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (= c_~top~0 0) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x|)))) is different from false [2020-10-09 14:45:03,075 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))))) (and (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (< .cse0 4294967296) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (<= 0 .cse0) (= |c_~#arr~0.offset| 0) (<= (div .cse0 (- 4294967296)) (div (+ (* .cse0 (- 1)) 399) 4294967296)) (= c_~top~0 0))) is different from false [2020-10-09 14:45:05,190 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* |c_t1Thread1of1ForFork0_inc_top_#t~post30| 4))))) (and (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (<= (div .cse0 (- 4294967296)) (div (+ (* .cse0 (- 1)) 399) 4294967296)) (= |c_t1Thread1of1ForFork0_inc_top_#t~post30| 0) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* |c_t1Thread1of1ForFork0_inc_top_#t~post30| 4))) 4294967296)))) (= |c_~#arr~0.offset| 0) (<= 0 .cse0) (< .cse0 4294967296))) is different from false [2020-10-09 14:45:06,749 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_~#arr~0.base|) |c_~#arr~0.offset|))) (and (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (< .cse0 4294967296) (<= 0 .cse0) (= c_~top~0 1) (<= (div .cse0 (- 4294967296)) (div (+ (* .cse0 (- 1)) 399) 4294967296)) (= |c_~#arr~0.offset| 0) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))))) is different from false [2020-10-09 14:45:08,139 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-09 14:45:13,222 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#arr~0.offset| (* 4 c_~top~0)))) (and (= .cse0 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= .cse0 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|))) is different from false [2020-10-09 14:45:14,351 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-09 14:45:16,488 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#arr~0.offset| (* 4 c_~top~0)))) (and (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (= c_~top~0 1) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= .cse0 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= .cse0 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (exists ((aux_div_v_arrayElimCell_1_38 Int) (|ULTIMATE.start_main_~#id2~0.base| Int) (aux_div_aux_mod_v_arrayElimCell_1_38_107 Int) (aux_mod_aux_mod_v_arrayElimCell_1_38_107 Int)) (let ((.cse1 (* 4294967296 aux_div_aux_mod_v_arrayElimCell_1_38_107))) (let ((.cse2 (+ .cse1 aux_mod_aux_mod_v_arrayElimCell_1_38_107))) (and (<= aux_div_v_arrayElimCell_1_38 aux_div_aux_mod_v_arrayElimCell_1_38_107) (< 0 (+ .cse1 aux_mod_aux_mod_v_arrayElimCell_1_38_107 4294966897)) (<= 0 aux_mod_aux_mod_v_arrayElimCell_1_38_107) (<= .cse2 399) (= (select (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) 0) 1) (<= .cse2 (+ (* 4294967296 aux_div_v_arrayElimCell_1_38) 399)) (or (= 399 (+ (select (select |c_#memory_int| |c_~#arr~0.base|) |c_~#arr~0.offset|) .cse1 aux_mod_aux_mod_v_arrayElimCell_1_38_107)) (= |c_~#arr~0.base| |ULTIMATE.start_main_~#id2~0.base|)))))) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (= |c_~#arr~0.offset| 0) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|))) is different from false [2020-10-09 14:45:17,122 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-09 14:45:18,166 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-09 14:45:20,191 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-09 14:45:22,759 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 185 [2020-10-09 14:45:24,075 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-09 14:45:25,162 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-09 14:45:26,194 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-09 14:45:27,684 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-09 14:45:28,795 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-09 14:45:32,899 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 206 [2020-10-09 14:45:34,054 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-09 14:45:40,545 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-09 14:45:40,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 14:45:40,747 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:662) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.enhanceAnddeterminizeInterpolantAutomaton(CegarLoopForPetriNet.java:524) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.refineAbstraction(CegarLoopForPetriNet.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:360) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 32 more [2020-10-09 14:45:40,752 INFO L168 Benchmark]: Toolchain (without parser) took 75053.65 ms. Allocated memory was 248.5 MB in the beginning and 910.2 MB in the end (delta: 661.7 MB). Free memory was 203.9 MB in the beginning and 787.5 MB in the end (delta: -583.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,752 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 14:45:40,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.14 ms. Allocated memory was 248.5 MB in the beginning and 305.1 MB in the end (delta: 56.6 MB). Free memory was 203.9 MB in the beginning and 232.7 MB in the end (delta: -28.8 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.29 ms. Allocated memory is still 305.1 MB. Free memory was 232.7 MB in the beginning and 230.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,758 INFO L168 Benchmark]: Boogie Preprocessor took 37.95 ms. Allocated memory is still 305.1 MB. Free memory was 230.2 MB in the beginning and 227.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,758 INFO L168 Benchmark]: RCFGBuilder took 662.83 ms. Allocated memory is still 305.1 MB. Free memory was 227.6 MB in the beginning and 195.7 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,762 INFO L168 Benchmark]: TraceAbstraction took 73384.70 ms. Allocated memory was 305.1 MB in the beginning and 910.2 MB in the end (delta: 605.0 MB). Free memory was 195.7 MB in the beginning and 787.5 MB in the end (delta: -591.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.2 GB. [2020-10-09 14:45:40,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 889.14 ms. Allocated memory was 248.5 MB in the beginning and 305.1 MB in the end (delta: 56.6 MB). Free memory was 203.9 MB in the beginning and 232.7 MB in the end (delta: -28.8 MB). Peak memory consumption was 38.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 72.29 ms. Allocated memory is still 305.1 MB. Free memory was 232.7 MB in the beginning and 230.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.95 ms. Allocated memory is still 305.1 MB. Free memory was 230.2 MB in the beginning and 227.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 662.83 ms. Allocated memory is still 305.1 MB. Free memory was 227.6 MB in the beginning and 195.7 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 73384.70 ms. Allocated memory was 305.1 MB in the beginning and 910.2 MB in the end (delta: 605.0 MB). Free memory was 195.7 MB in the beginning and 787.5 MB in the end (delta: -591.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...