/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:33:45,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:33:45,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:33:45,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:33:45,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:33:45,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:33:45,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:33:45,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:33:45,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:33:45,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:33:45,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:33:45,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:33:45,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:33:45,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:33:45,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:33:45,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:33:45,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:33:45,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:33:45,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:33:45,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:33:45,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:33:45,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:33:45,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:33:45,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:33:45,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 21:33:45,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 21:33:45,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 21:33:45,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 21:33:45,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 21:33:45,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 21:33:45,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:33:45,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:33:45,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:33:45,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:33:45,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:33:45,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:33:45,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:33:45,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:33:45,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:33:45,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:33:45,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:33:45,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:33:45,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:33:45,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:33:45,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:33:45,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:33:45,479 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:33:45,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:33:45,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:33:45,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:33:45,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:33:45,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:33:45,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:33:45,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:33:45,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:33:45,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:33:45,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:33:45,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:33:45,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:33:45,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:33:45,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:33:45,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:33:45,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:33:45,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:33:45,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:33:45,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:33:45,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:33:45,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:33:45,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:33:45,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:33:45,784 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:33:45,785 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:33:45,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-21 21:33:45,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01be25a62/b5f5c80f511840d8a078a3161896bad4/FLAGe85ea92dd [2020-10-21 21:33:46,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:33:46,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-21 21:33:46,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01be25a62/b5f5c80f511840d8a078a3161896bad4/FLAGe85ea92dd [2020-10-21 21:33:46,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01be25a62/b5f5c80f511840d8a078a3161896bad4 [2020-10-21 21:33:46,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:33:46,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:33:46,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:33:46,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:33:46,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:33:46,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:33:46" (1/1) ... [2020-10-21 21:33:46,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32765367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:46, skipping insertion in model container [2020-10-21 21:33:46,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:33:46" (1/1) ... [2020-10-21 21:33:46,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:33:46,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:33:47,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:33:47,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:33:47,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:33:47,648 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:33:47,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47 WrapperNode [2020-10-21 21:33:47,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:33:47,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:33:47,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:33:47,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:33:47,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:33:47,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:33:47,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:33:47,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:33:47,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (1/1) ... [2020-10-21 21:33:47,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:33:47,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:33:47,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:33:47,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:33:47,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (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 [2020-10-21 21:33:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 21:33:47,872 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 21:33:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 21:33:47,873 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 21:33:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:33:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:33:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 21:33:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:33:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 21:33:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:33:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:33:47,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:33:47,877 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:33:48,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:33:48,524 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-21 21:33:48,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:33:48 BoogieIcfgContainer [2020-10-21 21:33:48,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:33:48,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:33:48,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:33:48,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:33:48,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:33:46" (1/3) ... [2020-10-21 21:33:48,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd298d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:33:48, skipping insertion in model container [2020-10-21 21:33:48,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:47" (2/3) ... [2020-10-21 21:33:48,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd298d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:33:48, skipping insertion in model container [2020-10-21 21:33:48,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:33:48" (3/3) ... [2020-10-21 21:33:48,559 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-21 21:33:48,573 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:33:48,573 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:33:48,582 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 21:33:48,583 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:33:48,622 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,623 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,623 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,623 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,624 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,624 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,624 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,624 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,625 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,625 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,625 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,625 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,626 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,627 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,628 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,628 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,628 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,628 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,628 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,629 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,629 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,629 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,629 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,629 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,630 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,630 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,631 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,631 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,631 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,631 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,632 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,633 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,633 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,633 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,633 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,634 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,634 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,634 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,634 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,635 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,635 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,637 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,641 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,641 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,641 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,641 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,642 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,642 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,642 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,642 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,643 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,643 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,643 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,643 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,644 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,644 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,644 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,644 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,645 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,645 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,645 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,645 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,645 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,646 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,646 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,646 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,646 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,646 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,647 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,647 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,647 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,647 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,648 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,649 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,650 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,651 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,652 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,654 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,654 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,660 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,661 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,661 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,661 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,663 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,663 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,678 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:48,686 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 21:33:48,701 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:33:48,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:33:48,724 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:33:48,724 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:33:48,724 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:33:48,725 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:33:48,725 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:33:48,725 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:33:48,725 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:33:48,744 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:33:48,747 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:48,750 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:48,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:48,831 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2020-10-21 21:33:48,831 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 21:33:48,849 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 159 events. 13/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 433 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-10-21 21:33:48,861 INFO L116 LiptonReduction]: Number of co-enabled transitions 7732 [2020-10-21 21:33:51,101 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-21 21:33:52,229 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 21:33:52,373 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-21 21:33:53,467 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-10-21 21:33:53,878 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 21:33:53,935 INFO L131 LiptonReduction]: Checked pairs total: 12409 [2020-10-21 21:33:53,935 INFO L133 LiptonReduction]: Total number of compositions: 150 [2020-10-21 21:33:53,966 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-10-21 21:33:54,014 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-21 21:33:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-21 21:33:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:33:54,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:54,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 21:33:54,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:54,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1799512577, now seen corresponding path program 1 times [2020-10-21 21:33:54,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:54,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825473407] [2020-10-21 21:33:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:54,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825473407] [2020-10-21 21:33:54,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:54,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:54,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865890454] [2020-10-21 21:33:54,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:54,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:54,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:54,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,304 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-21 21:33:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:54,390 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-10-21 21:33:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:54,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 21:33:54,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:54,415 INFO L225 Difference]: With dead ends: 602 [2020-10-21 21:33:54,416 INFO L226 Difference]: Without dead ends: 580 [2020-10-21 21:33:54,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-21 21:33:54,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-10-21 21:33:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-21 21:33:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-10-21 21:33:54,522 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-10-21 21:33:54,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:54,523 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-10-21 21:33:54,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-10-21 21:33:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:33:54,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:54,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:54,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:33:54,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:54,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:54,525 INFO L82 PathProgramCache]: Analyzing trace with hash 426072580, now seen corresponding path program 1 times [2020-10-21 21:33:54,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:54,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789920326] [2020-10-21 21:33:54,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:54,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:54,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789920326] [2020-10-21 21:33:54,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:54,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:54,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103010005] [2020-10-21 21:33:54,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:54,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:54,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:54,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,638 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-10-21 21:33:54,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:54,667 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-10-21 21:33:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:54,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 21:33:54,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:54,672 INFO L225 Difference]: With dead ends: 530 [2020-10-21 21:33:54,672 INFO L226 Difference]: Without dead ends: 508 [2020-10-21 21:33:54,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-21 21:33:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-10-21 21:33:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-21 21:33:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-10-21 21:33:54,706 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-10-21 21:33:54,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:54,707 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-10-21 21:33:54,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-10-21 21:33:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:33:54,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:54,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:54,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:33:54,709 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:54,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1325926744, now seen corresponding path program 1 times [2020-10-21 21:33:54,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:54,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029418243] [2020-10-21 21:33:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:54,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029418243] [2020-10-21 21:33:54,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:54,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:54,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345074314] [2020-10-21 21:33:54,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:54,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:54,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:54,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,776 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-10-21 21:33:54,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:54,790 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-10-21 21:33:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:54,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 21:33:54,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:54,795 INFO L225 Difference]: With dead ends: 504 [2020-10-21 21:33:54,795 INFO L226 Difference]: Without dead ends: 504 [2020-10-21 21:33:54,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-21 21:33:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-21 21:33:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-21 21:33:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-10-21 21:33:54,821 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-10-21 21:33:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:54,821 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-10-21 21:33:54,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-10-21 21:33:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 21:33:54,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:54,824 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:54,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:33:54,824 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:54,824 INFO L82 PathProgramCache]: Analyzing trace with hash 246837902, now seen corresponding path program 1 times [2020-10-21 21:33:54,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:54,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28952842] [2020-10-21 21:33:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:54,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28952842] [2020-10-21 21:33:54,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452936775] [2020-10-21 21:33:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:54,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 21:33:54,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:33:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:55,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:33:55,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-21 21:33:55,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685705702] [2020-10-21 21:33:55,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 21:33:55,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:55,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 21:33:55,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:33:55,041 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 7 states. [2020-10-21 21:33:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:55,142 INFO L93 Difference]: Finished difference Result 940 states and 2424 transitions. [2020-10-21 21:33:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 21:33:55,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-21 21:33:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:55,150 INFO L225 Difference]: With dead ends: 940 [2020-10-21 21:33:55,150 INFO L226 Difference]: Without dead ends: 940 [2020-10-21 21:33:55,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 21:33:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-10-21 21:33:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 688. [2020-10-21 21:33:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-21 21:33:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1842 transitions. [2020-10-21 21:33:55,205 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1842 transitions. Word has length 14 [2020-10-21 21:33:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:55,205 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 1842 transitions. [2020-10-21 21:33:55,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 21:33:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1842 transitions. [2020-10-21 21:33:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 21:33:55,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:55,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:55,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:55,422 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:55,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1088801954, now seen corresponding path program 1 times [2020-10-21 21:33:55,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:55,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343750824] [2020-10-21 21:33:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:55,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343750824] [2020-10-21 21:33:55,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:55,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:33:55,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59651303] [2020-10-21 21:33:55,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:55,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:55,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:55,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:55,482 INFO L87 Difference]: Start difference. First operand 688 states and 1842 transitions. Second operand 3 states. [2020-10-21 21:33:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:55,509 INFO L93 Difference]: Finished difference Result 343 states and 775 transitions. [2020-10-21 21:33:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:55,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-21 21:33:55,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:55,513 INFO L225 Difference]: With dead ends: 343 [2020-10-21 21:33:55,513 INFO L226 Difference]: Without dead ends: 339 [2020-10-21 21:33:55,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-21 21:33:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 313. [2020-10-21 21:33:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-21 21:33:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 700 transitions. [2020-10-21 21:33:55,523 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 700 transitions. Word has length 16 [2020-10-21 21:33:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:55,524 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 700 transitions. [2020-10-21 21:33:55,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 700 transitions. [2020-10-21 21:33:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 21:33:55,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:55,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:55,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:33:55,526 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:55,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:55,526 INFO L82 PathProgramCache]: Analyzing trace with hash 678030022, now seen corresponding path program 1 times [2020-10-21 21:33:55,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:55,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975866695] [2020-10-21 21:33:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:55,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:55,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975866695] [2020-10-21 21:33:55,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:55,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:33:55,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663896570] [2020-10-21 21:33:55,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:33:55,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:55,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:33:55,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:33:55,613 INFO L87 Difference]: Start difference. First operand 313 states and 700 transitions. Second operand 5 states. [2020-10-21 21:33:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:55,696 INFO L93 Difference]: Finished difference Result 473 states and 1056 transitions. [2020-10-21 21:33:55,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:33:55,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 21:33:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:55,700 INFO L225 Difference]: With dead ends: 473 [2020-10-21 21:33:55,700 INFO L226 Difference]: Without dead ends: 473 [2020-10-21 21:33:55,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-21 21:33:55,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-21 21:33:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 351. [2020-10-21 21:33:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-21 21:33:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 791 transitions. [2020-10-21 21:33:55,714 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 791 transitions. Word has length 17 [2020-10-21 21:33:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:55,717 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 791 transitions. [2020-10-21 21:33:55,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:33:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 791 transitions. [2020-10-21 21:33:55,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 21:33:55,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:55,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:55,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:33:55,721 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:55,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:55,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1325689153, now seen corresponding path program 1 times [2020-10-21 21:33:55,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:55,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319074706] [2020-10-21 21:33:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:56,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319074706] [2020-10-21 21:33:56,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:56,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 21:33:56,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464071182] [2020-10-21 21:33:56,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:56,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:56,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:56,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:56,087 INFO L87 Difference]: Start difference. First operand 351 states and 791 transitions. Second operand 9 states. [2020-10-21 21:33:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:56,406 INFO L93 Difference]: Finished difference Result 653 states and 1454 transitions. [2020-10-21 21:33:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 21:33:56,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-21 21:33:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:56,411 INFO L225 Difference]: With dead ends: 653 [2020-10-21 21:33:56,411 INFO L226 Difference]: Without dead ends: 653 [2020-10-21 21:33:56,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-21 21:33:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-10-21 21:33:56,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 484. [2020-10-21 21:33:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-21 21:33:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 1129 transitions. [2020-10-21 21:33:56,429 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 1129 transitions. Word has length 21 [2020-10-21 21:33:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:56,429 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 1129 transitions. [2020-10-21 21:33:56,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 1129 transitions. [2020-10-21 21:33:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 21:33:56,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:56,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:56,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:33:56,432 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:56,435 INFO L82 PathProgramCache]: Analyzing trace with hash 308487363, now seen corresponding path program 2 times [2020-10-21 21:33:56,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:56,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389511864] [2020-10-21 21:33:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:57,115 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 32 [2020-10-21 21:33:57,264 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 20 [2020-10-21 21:33:57,416 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 20 [2020-10-21 21:33:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:57,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389511864] [2020-10-21 21:33:57,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:57,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 21:33:57,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956113171] [2020-10-21 21:33:57,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:57,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:57,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:57,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:57,475 INFO L87 Difference]: Start difference. First operand 484 states and 1129 transitions. Second operand 9 states. [2020-10-21 21:33:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:57,977 INFO L93 Difference]: Finished difference Result 765 states and 1739 transitions. [2020-10-21 21:33:57,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 21:33:57,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-21 21:33:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:57,983 INFO L225 Difference]: With dead ends: 765 [2020-10-21 21:33:57,983 INFO L226 Difference]: Without dead ends: 765 [2020-10-21 21:33:57,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-21 21:33:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-21 21:33:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 470. [2020-10-21 21:33:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-21 21:33:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1092 transitions. [2020-10-21 21:33:58,001 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1092 transitions. Word has length 21 [2020-10-21 21:33:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:58,002 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1092 transitions. [2020-10-21 21:33:58,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1092 transitions. [2020-10-21 21:33:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 21:33:58,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:58,003 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 21:33:58,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 21:33:58,003 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:58,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:58,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1898624995, now seen corresponding path program 2 times [2020-10-21 21:33:58,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:58,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994505725] [2020-10-21 21:33:58,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:58,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994505725] [2020-10-21 21:33:58,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471162391] [2020-10-21 21:33:58,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:58,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 21:33:58,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:33:58,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 21:33:58,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:33:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:58,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:33:58,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-21 21:33:58,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35340868] [2020-10-21 21:33:58,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:58,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:58,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:58,229 INFO L87 Difference]: Start difference. First operand 470 states and 1092 transitions. Second operand 9 states. [2020-10-21 21:33:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:58,321 INFO L93 Difference]: Finished difference Result 778 states and 1761 transitions. [2020-10-21 21:33:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:33:58,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 21:33:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:58,327 INFO L225 Difference]: With dead ends: 778 [2020-10-21 21:33:58,327 INFO L226 Difference]: Without dead ends: 778 [2020-10-21 21:33:58,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-21 21:33:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-21 21:33:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 560. [2020-10-21 21:33:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-21 21:33:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1291 transitions. [2020-10-21 21:33:58,346 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1291 transitions. Word has length 22 [2020-10-21 21:33:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:58,348 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1291 transitions. [2020-10-21 21:33:58,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1291 transitions. [2020-10-21 21:33:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-21 21:33:58,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:58,350 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:58,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:58,567 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:58,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:58,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1380091070, now seen corresponding path program 1 times [2020-10-21 21:33:58,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:58,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392697951] [2020-10-21 21:33:58,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:33:58,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:33:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:33:58,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:33:58,671 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:33:58,671 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:33:58,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 21:33:58,672 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 21:33:58,673 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 21:33:58,680 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [638] [638] L983-6-->L951: Formula: (let ((.cse0 (select |#pthreadsMutex_In828244307| |~#m~0.base_In828244307|)) (.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out828244307 4294967296))) (and (= |~#arr~0.offset_In828244307| |t1Thread1of1ForFork0_push_#in~stack.offset_Out828244307|) (= (store |#pthreadsMutex_In828244307| |~#m~0.base_In828244307| (store .cse0 |~#m~0.offset_In828244307| 1)) |#pthreadsMutex_Out828244307|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out828244307| |~#arr~0.base_In828244307|) (< .cse1 800) (= t1Thread1of1ForFork0_~tmp~0_Out828244307 |t1Thread1of1ForFork0_#t~nondet46_In828244307|) (= (select .cse0 |~#m~0.offset_In828244307|) 0) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out828244307| 1) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out828244307 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out828244307|) (< t1Thread1of1ForFork0_~i~0_In828244307 800) (= |t1Thread1of1ForFork0_push_#in~x_Out828244307| .cse1))) InVars {~#arr~0.offset=|~#arr~0.offset_In828244307|, #pthreadsMutex=|#pthreadsMutex_In828244307|, ~#m~0.base=|~#m~0.base_In828244307|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In828244307, ~#m~0.offset=|~#m~0.offset_In828244307|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_In828244307|, ~#arr~0.base=|~#arr~0.base_In828244307|} OutVars{~#arr~0.offset=|~#arr~0.offset_In828244307|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out828244307|, #pthreadsMutex=|#pthreadsMutex_Out828244307|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In828244307, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out828244307|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out828244307, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out828244307|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out828244307|, ~#m~0.base=|~#m~0.base_In828244307|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out828244307, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out828244307, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out828244307|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out828244307, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out828244307, ~#m~0.offset=|~#m~0.offset_In828244307|, t1Thread1of1ForFork0_#t~nondet46=|t1Thread1of1ForFork0_#t~nondet46_Out828244307|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out828244307|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out828244307|, ~#arr~0.base=|~#arr~0.base_In828244307|, t1Thread1of1ForFork0_#t~nondet45=|t1Thread1of1ForFork0_#t~nondet45_Out828244307|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#t~ret38, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_#t~nondet46, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet45] because there is no mapped edge [2020-10-21 21:33:58,690 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [632] [632] L1003-3-->L998-6: Formula: (and (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1194395191| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1194395191|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1194395191| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1194395191|) (<= |t2Thread1of1ForFork1_#t~ret50_In-1194395191| 2147483647) (= (+ t2Thread1of1ForFork1_~i~1_Out-1194395191 (- 1)) t2Thread1of1ForFork1_~i~1_In-1194395191) (= |#pthreadsMutex_Out-1194395191| (store |#pthreadsMutex_In-1194395191| |~#m~0.base_In-1194395191| (store (select |#pthreadsMutex_In-1194395191| |~#m~0.base_In-1194395191|) |~#m~0.offset_In-1194395191| 0))) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In-1194395191|)) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-1194395191| 2147483648))) InVars {t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-1194395191|, #pthreadsMutex=|#pthreadsMutex_In-1194395191|, ~#m~0.base=|~#m~0.base_In-1194395191|, ~#m~0.offset=|~#m~0.offset_In-1194395191|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-1194395191|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-1194395191, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-1194395191|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-1194395191|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-1194395191|, ~#m~0.base=|~#m~0.base_In-1194395191|, ~#m~0.offset=|~#m~0.offset_In-1194395191|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-1194395191|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-1194395191|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-1194395191, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-1194395191|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-10-21 21:33:58,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:33:58 BasicIcfg [2020-10-21 21:33:58,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:33:58,750 INFO L168 Benchmark]: Toolchain (without parser) took 12047.03 ms. Allocated memory was 140.0 MB in the beginning and 318.2 MB in the end (delta: 178.3 MB). Free memory was 100.6 MB in the beginning and 100.7 MB in the end (delta: -22.5 kB). Peak memory consumption was 178.2 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,751 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 939.93 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 132.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.69 ms. Allocated memory is still 203.9 MB. Free memory was 132.6 MB in the beginning and 129.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,753 INFO L168 Benchmark]: Boogie Preprocessor took 45.01 ms. Allocated memory is still 203.9 MB. Free memory was 129.9 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,754 INFO L168 Benchmark]: RCFGBuilder took 741.55 ms. Allocated memory is still 203.9 MB. Free memory was 127.9 MB in the beginning and 92.8 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,755 INFO L168 Benchmark]: TraceAbstraction took 10219.68 ms. Allocated memory was 203.9 MB in the beginning and 318.2 MB in the end (delta: 114.3 MB). Free memory was 92.1 MB in the beginning and 100.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:58,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 939.93 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 132.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 89.69 ms. Allocated memory is still 203.9 MB. Free memory was 132.6 MB in the beginning and 129.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.01 ms. Allocated memory is still 203.9 MB. Free memory was 129.9 MB in the beginning and 127.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 741.55 ms. Allocated memory is still 203.9 MB. Free memory was 127.9 MB in the beginning and 92.8 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10219.68 ms. Allocated memory was 203.9 MB in the beginning and 318.2 MB in the end (delta: 114.3 MB). Free memory was 92.1 MB in the beginning and 100.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5476 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 39 SemBasedMoverChecksPositive, 64 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 292 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 152 PlacesBefore, 40 PlacesAfterwards, 159 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 6 ChoiceCompositions, 150 TotalNumberOfCompositions, 12409 MoverChecksTotal - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L927] 0 static int top=0; [L928] 0 static unsigned int arr[(800)]; [L929] 0 pthread_mutex_t m; [L930] 0 _Bool flag=(0); [L1012] 0 pthread_t id1, id2; [L1014] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L1015] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L997] 2 int i; [L998] 2 i=0 VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L981] 1 int i; [L982] 1 unsigned int tmp; [L983] 1 i=0 VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L953] COND FALSE 1 !(top==(800)) VAL [arr={5:0}, flag=0, m={7:0}, top=0] [L945] 1 return top; [L960] 1 stack[get_top()] = x [L937] 1 top++ [L963] 1 return 0; [L988] COND FALSE 1 !(push(arr,tmp)==(-1)) [L990] 1 flag=(1) VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L983] 1 i++ VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L998] COND TRUE 2 i<(800) [L1001] COND TRUE 2 \read(flag) [L945] 2 return top; VAL [arr={5:0}, flag=1, m={7:0}, top=1] [L967] COND FALSE 2 !(get_top()==0) [L941] 2 top-- [L945] 2 return top; [L975] EXPR 2 stack[get_top()] [L975] 2 return stack[get_top()]; [L998] COND TRUE 2 i<(800) [L1001] COND TRUE 2 \read(flag) [L945] 2 return top; [L967] COND TRUE 2 get_top()==0 [L970] 2 return (-2); [L1003] COND TRUE 2 !(pop(arr)!=(-2)) [L12] COND FALSE 2 !(0) [L12] 2 __assert_fail ("0", "stack_longest-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={5:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 411 SDtfs, 517 SDslu, 853 SDs, 0 SdLazy, 449 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=688occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1275 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 43902 SizeOfPredicates, 5 NumberOfNonLiveVariables, 365 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 6/34 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...