/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-wmm/mix032_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 16:49:57,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 16:49:57,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 16:49:57,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 16:49:57,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 16:49:57,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 16:49:57,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 16:49:57,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 16:49:57,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 16:49:57,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 16:49:57,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 16:49:57,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 16:49:57,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 16:49:57,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 16:49:57,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 16:49:57,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 16:49:57,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 16:49:57,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 16:49:57,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 16:49:57,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 16:49:57,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 16:49:57,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 16:49:57,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 16:49:57,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 16:49:57,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 16:49:57,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 16:49:57,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 16:49:57,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 16:49:57,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 16:49:57,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 16:49:57,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 16:49:57,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 16:49:57,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 16:49:57,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 16:49:57,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 16:49:57,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 16:49:57,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 16:49:57,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 16:49:57,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 16:49:57,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 16:49:57,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 16:49:57,429 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 16:49:57,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 16:49:57,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 16:49:57,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 16:49:57,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 16:49:57,453 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 16:49:57,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 16:49:57,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 16:49:57,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 16:49:57,454 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 16:49:57,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 16:49:57,455 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 16:49:57,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 16:49:57,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 16:49:57,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 16:49:57,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 16:49:57,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 16:49:57,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 16:49:57,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 16:49:57,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 16:49:57,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 16:49:57,457 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 16:49:57,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 16:49:57,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 16:49:57,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 16:49:57,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 16:49:57,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 16:49:57,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 16:49:57,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 16:49:57,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 16:49:57,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 16:49:57,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix032_pso.opt.i [2020-10-09 16:49:57,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a1785f7/c3932af4d2904fcf83fe5982be702e63/FLAG5d111afce [2020-10-09 16:49:58,355 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 16:49:58,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix032_pso.opt.i [2020-10-09 16:49:58,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a1785f7/c3932af4d2904fcf83fe5982be702e63/FLAG5d111afce [2020-10-09 16:49:58,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a1785f7/c3932af4d2904fcf83fe5982be702e63 [2020-10-09 16:49:58,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 16:49:58,680 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 16:49:58,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 16:49:58,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 16:49:58,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 16:49:58,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 04:49:58" (1/1) ... [2020-10-09 16:49:58,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b24b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:58, skipping insertion in model container [2020-10-09 16:49:58,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 04:49:58" (1/1) ... [2020-10-09 16:49:58,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 16:49:58,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 16:49:59,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 16:49:59,408 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 16:49:59,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 16:49:59,542 INFO L208 MainTranslator]: Completed translation [2020-10-09 16:49:59,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59 WrapperNode [2020-10-09 16:49:59,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 16:49:59,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 16:49:59,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 16:49:59,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 16:49:59,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 16:49:59,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 16:49:59,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 16:49:59,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 16:49:59,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (1/1) ... [2020-10-09 16:49:59,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 16:49:59,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 16:49:59,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 16:49:59,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 16:49:59,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (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 16:49:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 16:49:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 16:49:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 16:49:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 16:49:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 16:49:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 16:49:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 16:49:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 16:49:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 16:49:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 16:49:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 16:49:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 16:49:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 16:49:59,729 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 16:50:01,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 16:50:01,401 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-09 16:50:01,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 04:50:01 BoogieIcfgContainer [2020-10-09 16:50:01,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 16:50:01,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 16:50:01,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 16:50:01,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 16:50:01,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 04:49:58" (1/3) ... [2020-10-09 16:50:01,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686a9b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 04:50:01, skipping insertion in model container [2020-10-09 16:50:01,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:49:59" (2/3) ... [2020-10-09 16:50:01,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686a9b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 04:50:01, skipping insertion in model container [2020-10-09 16:50:01,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 04:50:01" (3/3) ... [2020-10-09 16:50:01,412 INFO L111 eAbstractionObserver]: Analyzing ICFG mix032_pso.opt.i [2020-10-09 16:50:01,423 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 16:50:01,431 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 16:50:01,432 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 16:50:01,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,484 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:50:01,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 16:50:01,535 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 16:50:01,535 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 16:50:01,536 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 16:50:01,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 16:50:01,536 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 16:50:01,536 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 16:50:01,536 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 16:50:01,536 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 16:50:01,550 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2020-10-09 16:50:01,597 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2020-10-09 16:50:01,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:50:01,602 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2020-10-09 16:50:01,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2020-10-09 16:50:01,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2020-10-09 16:50:01,628 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2020-10-09 16:50:01,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:50:01,629 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:01,630 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] [2020-10-09 16:50:01,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:01,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:01,637 INFO L82 PathProgramCache]: Analyzing trace with hash -268007780, now seen corresponding path program 1 times [2020-10-09 16:50:01,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:01,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420954365] [2020-10-09 16:50:01,653 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 16:50:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:50:01,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 16:50:01,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:50:01,831 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 16:50:01,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:50:01,884 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:50:01,906 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 16:50:01,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420954365] [2020-10-09 16:50:01,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:50:01,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-09 16:50:01,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733560320] [2020-10-09 16:50:01,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 16:50:01,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:50:01,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 16:50:01,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 16:50:02,051 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 100 [2020-10-09 16:50:02,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 203 flow. Second operand 4 states. [2020-10-09 16:50:02,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:50:02,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 100 [2020-10-09 16:50:02,055 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:50:02,093 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2020-10-09 16:50:02,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:50:02,094 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-09 16:50:02,096 INFO L132 encePairwiseOnDemand]: 95/100 looper letters, 0 selfloop transitions, 2 changer transitions 11/94 dead transitions. [2020-10-09 16:50:02,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 94 transitions, 201 flow [2020-10-09 16:50:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 16:50:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 16:50:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-10-09 16:50:02,112 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9733333333333334 [2020-10-09 16:50:02,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2020-10-09 16:50:02,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2020-10-09 16:50:02,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:50:02,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2020-10-09 16:50:02,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 16:50:02,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 16:50:02,156 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 16:50:02,159 INFO L185 Difference]: Start difference. First operand has 105 places, 97 transitions, 203 flow. Second operand 3 states and 292 transitions. [2020-10-09 16:50:02,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 94 transitions, 201 flow [2020-10-09 16:50:02,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-09 16:50:02,167 INFO L241 Difference]: Finished difference. Result has 103 places, 83 transitions, 176 flow [2020-10-09 16:50:02,170 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2020-10-09 16:50:02,171 INFO L341 CegarLoopForPetriNet]: 105 programPoint places, -2 predicate places. [2020-10-09 16:50:02,172 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 176 flow [2020-10-09 16:50:02,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 16:50:02,172 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:02,172 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] [2020-10-09 16:50:02,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 16:50:02,385 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:02,386 INFO L82 PathProgramCache]: Analyzing trace with hash -169406070, now seen corresponding path program 1 times [2020-10-09 16:50:02,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:02,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086085979] [2020-10-09 16:50:02,387 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 16:50:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:50:02,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-09 16:50:02,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:50:02,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:50:02,522 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 16:50:02,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:50:02,554 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 16:50:02,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086085979] [2020-10-09 16:50:02,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:50:02,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 16:50:02,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743721209] [2020-10-09 16:50:02,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 16:50:02,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:50:02,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 16:50:02,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 16:50:02,694 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 100 [2020-10-09 16:50:02,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 176 flow. Second operand 8 states. [2020-10-09 16:50:02,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:50:02,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 100 [2020-10-09 16:50:02,695 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:50:02,894 INFO L129 PetriNetUnfolder]: 64/239 cut-off events. [2020-10-09 16:50:02,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:50:02,896 INFO L80 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 239 events. 64/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 928 event pairs, 0 based on Foata normal form. 8/243 useless extension candidates. Maximal degree in co-relation 328. Up to 36 conditions per place. [2020-10-09 16:50:02,897 INFO L132 encePairwiseOnDemand]: 91/100 looper letters, 10 selfloop transitions, 9 changer transitions 29/121 dead transitions. [2020-10-09 16:50:02,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 121 transitions, 348 flow [2020-10-09 16:50:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-09 16:50:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-09 16:50:02,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1095 transitions. [2020-10-09 16:50:02,906 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9125 [2020-10-09 16:50:02,906 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1095 transitions. [2020-10-09 16:50:02,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1095 transitions. [2020-10-09 16:50:02,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:50:02,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1095 transitions. [2020-10-09 16:50:02,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-09 16:50:02,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-09 16:50:02,917 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-09 16:50:02,917 INFO L185 Difference]: Start difference. First operand has 103 places, 83 transitions, 176 flow. Second operand 12 states and 1095 transitions. [2020-10-09 16:50:02,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 121 transitions, 348 flow [2020-10-09 16:50:02,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 121 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 16:50:02,922 INFO L241 Difference]: Finished difference. Result has 110 places, 89 transitions, 270 flow [2020-10-09 16:50:02,923 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=270, PETRI_PLACES=110, PETRI_TRANSITIONS=89} [2020-10-09 16:50:02,923 INFO L341 CegarLoopForPetriNet]: 105 programPoint places, 5 predicate places. [2020-10-09 16:50:02,923 INFO L481 AbstractCegarLoop]: Abstraction has has 110 places, 89 transitions, 270 flow [2020-10-09 16:50:02,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 16:50:02,924 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:02,924 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] [2020-10-09 16:50:03,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 16:50:03,136 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:03,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1607296523, now seen corresponding path program 1 times [2020-10-09 16:50:03,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:03,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697561660] [2020-10-09 16:50:03,139 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 16:50:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:50:03,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 16:50:03,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:50:03,269 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:50:03,297 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 16:50:03,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:50:03,347 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 16:50:03,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697561660] [2020-10-09 16:50:03,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:50:03,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 16:50:03,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133540964] [2020-10-09 16:50:03,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 16:50:03,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:50:03,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 16:50:03,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 16:50:03,553 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 100 [2020-10-09 16:50:03,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 89 transitions, 270 flow. Second operand 8 states. [2020-10-09 16:50:03,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:50:03,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 100 [2020-10-09 16:50:03,556 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:50:03,705 INFO L129 PetriNetUnfolder]: 17/170 cut-off events. [2020-10-09 16:50:03,705 INFO L130 PetriNetUnfolder]: For 218/223 co-relation queries the response was YES. [2020-10-09 16:50:03,706 INFO L80 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 170 events. 17/170 cut-off events. For 218/223 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 456 event pairs, 3 based on Foata normal form. 3/172 useless extension candidates. Maximal degree in co-relation 317. Up to 26 conditions per place. [2020-10-09 16:50:03,708 INFO L132 encePairwiseOnDemand]: 94/100 looper letters, 6 selfloop transitions, 2 changer transitions 10/99 dead transitions. [2020-10-09 16:50:03,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 99 transitions, 326 flow [2020-10-09 16:50:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 16:50:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 16:50:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 830 transitions. [2020-10-09 16:50:03,711 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9222222222222223 [2020-10-09 16:50:03,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 830 transitions. [2020-10-09 16:50:03,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 830 transitions. [2020-10-09 16:50:03,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:50:03,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 830 transitions. [2020-10-09 16:50:03,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 16:50:03,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 16:50:03,717 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 16:50:03,717 INFO L185 Difference]: Start difference. First operand has 110 places, 89 transitions, 270 flow. Second operand 9 states and 830 transitions. [2020-10-09 16:50:03,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 99 transitions, 326 flow [2020-10-09 16:50:03,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 99 transitions, 296 flow, removed 11 selfloop flow, removed 7 redundant places. [2020-10-09 16:50:03,723 INFO L241 Difference]: Finished difference. Result has 112 places, 89 transitions, 260 flow [2020-10-09 16:50:03,723 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=260, PETRI_PLACES=112, PETRI_TRANSITIONS=89} [2020-10-09 16:50:03,723 INFO L341 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2020-10-09 16:50:03,723 INFO L481 AbstractCegarLoop]: Abstraction has has 112 places, 89 transitions, 260 flow [2020-10-09 16:50:03,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 16:50:03,724 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:03,724 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] [2020-10-09 16:50:03,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 16:50:03,935 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:03,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:03,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1920540981, now seen corresponding path program 1 times [2020-10-09 16:50:03,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:03,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386175291] [2020-10-09 16:50:03,938 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 16:50:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:50:04,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-09 16:50:04,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:50:04,077 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:50:04,103 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 16:50:04,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:50:04,143 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 16:50:04,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386175291] [2020-10-09 16:50:04,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:50:04,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2020-10-09 16:50:04,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229222960] [2020-10-09 16:50:04,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-09 16:50:04,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:50:04,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-09 16:50:04,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-09 16:50:04,313 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 100 [2020-10-09 16:50:04,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 89 transitions, 260 flow. Second operand 10 states. [2020-10-09 16:50:04,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:50:04,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 100 [2020-10-09 16:50:04,314 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:50:04,520 INFO L129 PetriNetUnfolder]: 16/129 cut-off events. [2020-10-09 16:50:04,520 INFO L130 PetriNetUnfolder]: For 134/160 co-relation queries the response was YES. [2020-10-09 16:50:04,521 INFO L80 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 129 events. 16/129 cut-off events. For 134/160 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 219 event pairs, 0 based on Foata normal form. 14/142 useless extension candidates. Maximal degree in co-relation 282. Up to 27 conditions per place. [2020-10-09 16:50:04,522 INFO L132 encePairwiseOnDemand]: 91/100 looper letters, 4 selfloop transitions, 12 changer transitions 13/102 dead transitions. [2020-10-09 16:50:04,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 102 transitions, 405 flow [2020-10-09 16:50:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-09 16:50:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-09 16:50:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 988 transitions. [2020-10-09 16:50:04,528 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8981818181818182 [2020-10-09 16:50:04,528 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 988 transitions. [2020-10-09 16:50:04,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 988 transitions. [2020-10-09 16:50:04,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:50:04,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 988 transitions. [2020-10-09 16:50:04,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-09 16:50:04,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-09 16:50:04,533 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-09 16:50:04,534 INFO L185 Difference]: Start difference. First operand has 112 places, 89 transitions, 260 flow. Second operand 11 states and 988 transitions. [2020-10-09 16:50:04,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 102 transitions, 405 flow [2020-10-09 16:50:04,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 367 flow, removed 16 selfloop flow, removed 9 redundant places. [2020-10-09 16:50:04,542 INFO L241 Difference]: Finished difference. Result has 113 places, 89 transitions, 280 flow [2020-10-09 16:50:04,543 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=280, PETRI_PLACES=113, PETRI_TRANSITIONS=89} [2020-10-09 16:50:04,543 INFO L341 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2020-10-09 16:50:04,543 INFO L481 AbstractCegarLoop]: Abstraction has has 113 places, 89 transitions, 280 flow [2020-10-09 16:50:04,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-09 16:50:04,543 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:04,544 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] [2020-10-09 16:50:04,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 16:50:04,764 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash 638497030, now seen corresponding path program 1 times [2020-10-09 16:50:04,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:04,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761387583] [2020-10-09 16:50:04,767 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 16:50:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:50:04,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 16:50:04,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:50:04,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:50:04,953 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 16:50:04,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:50:05,021 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 16:50:05,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761387583] [2020-10-09 16:50:05,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:50:05,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2020-10-09 16:50:05,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361032475] [2020-10-09 16:50:05,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-09 16:50:05,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:50:05,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-09 16:50:05,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-09 16:50:05,259 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 100 [2020-10-09 16:50:05,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 89 transitions, 280 flow. Second operand 9 states. [2020-10-09 16:50:05,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:50:05,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 100 [2020-10-09 16:50:05,261 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:50:05,387 INFO L129 PetriNetUnfolder]: 10/137 cut-off events. [2020-10-09 16:50:05,387 INFO L130 PetriNetUnfolder]: For 104/112 co-relation queries the response was YES. [2020-10-09 16:50:05,388 INFO L80 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 137 events. 10/137 cut-off events. For 104/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 256 event pairs, 0 based on Foata normal form. 1/136 useless extension candidates. Maximal degree in co-relation 238. Up to 21 conditions per place. [2020-10-09 16:50:05,389 INFO L132 encePairwiseOnDemand]: 94/100 looper letters, 9 selfloop transitions, 1 changer transitions 5/94 dead transitions. [2020-10-09 16:50:05,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 94 transitions, 320 flow [2020-10-09 16:50:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 16:50:05,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-09 16:50:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 632 transitions. [2020-10-09 16:50:05,392 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9028571428571428 [2020-10-09 16:50:05,392 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 632 transitions. [2020-10-09 16:50:05,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 632 transitions. [2020-10-09 16:50:05,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:50:05,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 632 transitions. [2020-10-09 16:50:05,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-09 16:50:05,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-09 16:50:05,397 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-09 16:50:05,397 INFO L185 Difference]: Start difference. First operand has 113 places, 89 transitions, 280 flow. Second operand 7 states and 632 transitions. [2020-10-09 16:50:05,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 94 transitions, 320 flow [2020-10-09 16:50:05,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 94 transitions, 244 flow, removed 19 selfloop flow, removed 15 redundant places. [2020-10-09 16:50:05,401 INFO L241 Difference]: Finished difference. Result has 105 places, 89 transitions, 217 flow [2020-10-09 16:50:05,401 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=217, PETRI_PLACES=105, PETRI_TRANSITIONS=89} [2020-10-09 16:50:05,402 INFO L341 CegarLoopForPetriNet]: 105 programPoint places, 0 predicate places. [2020-10-09 16:50:05,402 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 89 transitions, 217 flow [2020-10-09 16:50:05,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-09 16:50:05,402 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:50:05,402 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] [2020-10-09 16:50:05,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 16:50:05,624 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:50:05,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:50:05,624 INFO L82 PathProgramCache]: Analyzing trace with hash 988013212, now seen corresponding path program 2 times [2020-10-09 16:50:05,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:50:05,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247818408] [2020-10-09 16:50:05,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 16:50:05,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-09 16:50:05,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-09 16:50:05,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 16:50:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 16:50:05,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 16:50:05,940 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 16:50:05,940 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 16:50:06,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 16:50:06,201 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,201 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,203 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,203 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,203 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,203 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,204 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,204 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,204 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,204 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,204 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,204 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,205 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,205 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,205 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,205 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,205 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,206 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,206 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,206 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,206 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,206 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,206 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,207 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,207 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,207 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,207 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,208 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,208 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,208 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,208 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,208 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,208 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,208 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,209 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,209 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,209 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,209 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,210 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,211 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,211 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,211 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,211 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,211 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,211 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,212 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,212 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,212 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,212 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:50:06,212 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:50:06,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 04:50:06 BasicIcfg [2020-10-09 16:50:06,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 16:50:06,333 INFO L168 Benchmark]: Toolchain (without parser) took 7652.10 ms. Allocated memory was 247.5 MB in the beginning and 435.7 MB in the end (delta: 188.2 MB). Free memory was 203.5 MB in the beginning and 316.4 MB in the end (delta: -112.9 MB). Peak memory consumption was 75.3 MB. Max. memory is 14.2 GB. [2020-10-09 16:50:06,335 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 16:50:06,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.77 ms. Allocated memory was 247.5 MB in the beginning and 302.5 MB in the end (delta: 55.1 MB). Free memory was 203.5 MB in the beginning and 252.8 MB in the end (delta: -49.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. [2020-10-09 16:50:06,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.54 ms. Allocated memory is still 302.5 MB. Free memory was 252.8 MB in the beginning and 250.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 16:50:06,338 INFO L168 Benchmark]: Boogie Preprocessor took 37.38 ms. Allocated memory is still 302.5 MB. Free memory was 250.3 MB in the beginning and 247.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 16:50:06,342 INFO L168 Benchmark]: RCFGBuilder took 1755.67 ms. Allocated memory was 302.5 MB in the beginning and 353.4 MB in the end (delta: 50.9 MB). Free memory was 247.8 MB in the beginning and 236.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 14.2 GB. [2020-10-09 16:50:06,342 INFO L168 Benchmark]: TraceAbstraction took 4925.26 ms. Allocated memory was 353.4 MB in the beginning and 435.7 MB in the end (delta: 82.3 MB). Free memory was 232.5 MB in the beginning and 316.4 MB in the end (delta: -83.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 16:50:06,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 859.77 ms. Allocated memory was 247.5 MB in the beginning and 302.5 MB in the end (delta: 55.1 MB). Free memory was 203.5 MB in the beginning and 252.8 MB in the end (delta: -49.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 66.54 ms. Allocated memory is still 302.5 MB. Free memory was 252.8 MB in the beginning and 250.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.38 ms. Allocated memory is still 302.5 MB. Free memory was 250.3 MB in the beginning and 247.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1755.67 ms. Allocated memory was 302.5 MB in the beginning and 353.4 MB in the end (delta: 50.9 MB). Free memory was 247.8 MB in the beginning and 236.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4925.26 ms. Allocated memory was 353.4 MB in the beginning and 435.7 MB in the end (delta: 82.3 MB). Free memory was 232.5 MB in the beginning and 316.4 MB in the end (delta: -83.9 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L700] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L702] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L704] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L706] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0] [L708] 0 int __unbuffered_p2_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0] [L710] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0] [L712] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0] [L713] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0] [L714] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0] [L716] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L718] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L720] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L721] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L722] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L723] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L724] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L725] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L726] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L727] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0] [L728] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L729] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L730] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L731] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0] [L732] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L733] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L734] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L735] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L736] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L737] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L738] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L834] 0 pthread_t t858; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L835] FCALL, FORK 0 pthread_create(&t858, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t859; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L837] FCALL, FORK 0 pthread_create(&t859, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t860; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] FCALL, FORK 0 pthread_create(&t860, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L791] 3 z$w_buff1 = z$w_buff0 [L792] 3 z$w_buff0 = 1 [L793] 3 z$w_buff1_used = z$w_buff0_used [L794] 3 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 3 !expression [L7] 3 __VERIFIER_error() [L796] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L797] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L798] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L799] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L800] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L803] 3 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L806] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L742] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L745] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L750] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 2 x = 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 2 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L763] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L767] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L768] 2 z$flush_delayed = weak$$choice2 [L769] 2 z$mem_tmp = z [L770] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L770] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L771] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L771] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L772] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L772] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1) [L772] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1 [L772] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1) [L772] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L772] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L773] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L773] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L774] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L774] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0 [L774] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L774] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L775] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L776] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 __unbuffered_p1_EBX = z [L778] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L778] 2 z = z$flush_delayed ? z$mem_tmp : z [L779] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L812] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L812] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L812] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L813] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L813] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L814] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L815] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L816] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L816] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L845] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L845] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L845] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L846] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L846] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L847] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L848] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L849] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L852] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L7] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L7] 0 __VERIFIER_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 130 SDslu, 242 SDs, 0 SdLazy, 306 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 668 GetRequests, 608 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 108530 SizeOfPredicates, 31 NumberOfNonLiveVariables, 885 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...