/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:40:25,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:40:25,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:40:25,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:40:25,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:40:25,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:40:25,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:40:25,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:40:25,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:40:25,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:40:25,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:40:25,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:40:25,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:40:25,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:40:25,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:40:25,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:40:25,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:40:25,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:40:25,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:40:25,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:40:25,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:40:25,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:40:25,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:40:25,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:40:25,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:40:25,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:40:25,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:40:25,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:40:25,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:40:25,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:40:25,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:40:25,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:40:25,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:40:25,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:40:25,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:40:25,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:40:25,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:40:25,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:40:25,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:40:25,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:40:25,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:40:25,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 08:40:25,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:40:25,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:40:25,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:40:25,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:40:25,672 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:40:25,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:40:25,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:40:25,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:40:25,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:40:25,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:40:25,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:40:25,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:40:25,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:40:25,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:40:25,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:40:25,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:40:25,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:40:25,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:40:25,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:40:25,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:40:25,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:40:25,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:40:25,677 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:40:25,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:40:25,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:40:25,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:40:26,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:40:26,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:40:26,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:40:26,020 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:40:26,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2019-12-27 08:40:26,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dabf5f6/4ce7e8eb045748d8bc323aaeb8c9ff08/FLAGbb87917fc [2019-12-27 08:40:26,687 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:40:26,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2019-12-27 08:40:26,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dabf5f6/4ce7e8eb045748d8bc323aaeb8c9ff08/FLAGbb87917fc [2019-12-27 08:40:26,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dabf5f6/4ce7e8eb045748d8bc323aaeb8c9ff08 [2019-12-27 08:40:26,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:40:26,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:40:26,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:40:26,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:40:26,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:40:26,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:40:26" (1/1) ... [2019-12-27 08:40:26,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4d587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:26, skipping insertion in model container [2019-12-27 08:40:26,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:40:26" (1/1) ... [2019-12-27 08:40:26,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:40:27,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:40:27,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:40:27,580 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:40:27,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:40:27,893 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:40:27,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27 WrapperNode [2019-12-27 08:40:27,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:40:27,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:40:27,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:40:27,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:40:27,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:27,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:40:28,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:40:28,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:40:28,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:40:28,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... [2019-12-27 08:40:28,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:40:28,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:40:28,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:40:28,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:40:28,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:40:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2019-12-27 08:40:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2019-12-27 08:40:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2019-12-27 08:40:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2019-12-27 08:40:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:40:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:40:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 08:40:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:40:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 08:40:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 08:40:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:40:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:40:28,125 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:40:28,693 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:40:28,694 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-27 08:40:28,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:40:28 BoogieIcfgContainer [2019-12-27 08:40:28,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:40:28,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:40:28,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:40:28,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:40:28,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:40:26" (1/3) ... [2019-12-27 08:40:28,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443c7e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:40:28, skipping insertion in model container [2019-12-27 08:40:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:40:27" (2/3) ... [2019-12-27 08:40:28,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443c7e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:40:28, skipping insertion in model container [2019-12-27 08:40:28,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:40:28" (3/3) ... [2019-12-27 08:40:28,704 INFO L109 eAbstractionObserver]: Analyzing ICFG stack-2.i [2019-12-27 08:40:28,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:40:28,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:40:28,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:40:28,725 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:40:28,773 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,773 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,774 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,774 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,774 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,774 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,774 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,775 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,775 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,775 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,775 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,776 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,776 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,776 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,776 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,776 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,777 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,777 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,777 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,777 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,777 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,778 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,778 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,778 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,778 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,778 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,779 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,780 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,780 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,780 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,780 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,781 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,781 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,781 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,781 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,781 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,782 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,782 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,782 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,782 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,783 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,783 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,783 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,783 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,783 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,784 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,784 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,784 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,784 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,785 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,785 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,785 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,785 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,786 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,786 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,786 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,786 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,787 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,788 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,788 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,788 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,788 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,788 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,789 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,789 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,789 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,789 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,789 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,790 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,790 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,790 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,790 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,791 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,791 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,791 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,791 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,791 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,792 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,792 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,792 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,792 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,792 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,793 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,793 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,793 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,793 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,793 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,794 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,794 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,794 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,794 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,794 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,795 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,795 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,795 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,795 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,796 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,796 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,796 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,796 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,797 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,797 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,797 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,797 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,797 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,798 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,798 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,798 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,798 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,798 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,799 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,799 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,799 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,799 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,800 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,800 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,800 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,800 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,800 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,801 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,801 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,801 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,804 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,805 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,805 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,806 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,807 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,807 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,807 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,807 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,807 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,814 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,815 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,815 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,815 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,815 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,816 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,817 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,817 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,817 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,817 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,817 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,818 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,818 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,818 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:40:28,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 08:40:28,871 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:40:28,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:40:28,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:40:28,873 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:40:28,873 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:40:28,873 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:40:28,873 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:40:28,874 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:40:28,890 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 140 places, 144 transitions [2019-12-27 08:40:29,153 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6509 states. [2019-12-27 08:40:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states. [2019-12-27 08:40:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-27 08:40:29,198 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:29,199 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:29,200 INFO L410 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:29,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1662796957, now seen corresponding path program 1 times [2019-12-27 08:40:29,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:29,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339789753] [2019-12-27 08:40:29,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:29,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339789753] [2019-12-27 08:40:29,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:29,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:40:29,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472108770] [2019-12-27 08:40:29,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:40:29,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:29,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:40:29,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:29,756 INFO L87 Difference]: Start difference. First operand 6509 states. Second operand 3 states. [2019-12-27 08:40:29,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:29,978 INFO L93 Difference]: Finished difference Result 9857 states and 26356 transitions. [2019-12-27 08:40:29,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:40:29,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-12-27 08:40:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:30,095 INFO L225 Difference]: With dead ends: 9857 [2019-12-27 08:40:30,095 INFO L226 Difference]: Without dead ends: 9749 [2019-12-27 08:40:30,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9749 states. [2019-12-27 08:40:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9749 to 8279. [2019-12-27 08:40:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8279 states. [2019-12-27 08:40:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8279 states to 8279 states and 22337 transitions. [2019-12-27 08:40:30,616 INFO L78 Accepts]: Start accepts. Automaton has 8279 states and 22337 transitions. Word has length 49 [2019-12-27 08:40:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:30,617 INFO L462 AbstractCegarLoop]: Abstraction has 8279 states and 22337 transitions. [2019-12-27 08:40:30,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:40:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8279 states and 22337 transitions. [2019-12-27 08:40:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-27 08:40:30,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:30,623 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:30,624 INFO L410 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:30,625 INFO L82 PathProgramCache]: Analyzing trace with hash 494656747, now seen corresponding path program 1 times [2019-12-27 08:40:30,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:30,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178190459] [2019-12-27 08:40:30,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:30,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178190459] [2019-12-27 08:40:30,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:30,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:40:30,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597919478] [2019-12-27 08:40:30,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:40:30,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:30,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:40:30,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:30,733 INFO L87 Difference]: Start difference. First operand 8279 states and 22337 transitions. Second operand 3 states. [2019-12-27 08:40:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:30,890 INFO L93 Difference]: Finished difference Result 7700 states and 20472 transitions. [2019-12-27 08:40:30,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:40:30,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-12-27 08:40:30,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:30,958 INFO L225 Difference]: With dead ends: 7700 [2019-12-27 08:40:30,958 INFO L226 Difference]: Without dead ends: 7559 [2019-12-27 08:40:30,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2019-12-27 08:40:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 7331. [2019-12-27 08:40:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7331 states. [2019-12-27 08:40:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19611 transitions. [2019-12-27 08:40:31,210 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19611 transitions. Word has length 53 [2019-12-27 08:40:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:31,212 INFO L462 AbstractCegarLoop]: Abstraction has 7331 states and 19611 transitions. [2019-12-27 08:40:31,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:40:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19611 transitions. [2019-12-27 08:40:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-27 08:40:31,220 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:31,220 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:31,220 INFO L410 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:31,221 INFO L82 PathProgramCache]: Analyzing trace with hash 192218532, now seen corresponding path program 1 times [2019-12-27 08:40:31,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:31,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235437987] [2019-12-27 08:40:31,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:31,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235437987] [2019-12-27 08:40:31,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:31,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:40:31,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487124584] [2019-12-27 08:40:31,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:40:31,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:31,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:40:31,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:40:31,396 INFO L87 Difference]: Start difference. First operand 7331 states and 19611 transitions. Second operand 4 states. [2019-12-27 08:40:31,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:31,532 INFO L93 Difference]: Finished difference Result 10196 states and 27214 transitions. [2019-12-27 08:40:31,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:40:31,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2019-12-27 08:40:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:31,667 INFO L225 Difference]: With dead ends: 10196 [2019-12-27 08:40:31,668 INFO L226 Difference]: Without dead ends: 10196 [2019-12-27 08:40:31,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:40:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10196 states. [2019-12-27 08:40:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10196 to 7655. [2019-12-27 08:40:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7655 states. [2019-12-27 08:40:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7655 states to 7655 states and 20478 transitions. [2019-12-27 08:40:31,904 INFO L78 Accepts]: Start accepts. Automaton has 7655 states and 20478 transitions. Word has length 58 [2019-12-27 08:40:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:31,905 INFO L462 AbstractCegarLoop]: Abstraction has 7655 states and 20478 transitions. [2019-12-27 08:40:31,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:40:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7655 states and 20478 transitions. [2019-12-27 08:40:31,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-27 08:40:31,913 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:31,914 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:31,914 INFO L410 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:31,915 INFO L82 PathProgramCache]: Analyzing trace with hash 124748564, now seen corresponding path program 1 times [2019-12-27 08:40:31,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:31,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040786487] [2019-12-27 08:40:31,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:32,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040786487] [2019-12-27 08:40:32,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847058151] [2019-12-27 08:40:32,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:40:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:32,179 INFO L264 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-27 08:40:32,188 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:40:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:32,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:40:32,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-27 08:40:32,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425881605] [2019-12-27 08:40:32,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:40:32,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:32,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:40:32,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:40:32,258 INFO L87 Difference]: Start difference. First operand 7655 states and 20478 transitions. Second operand 7 states. [2019-12-27 08:40:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:32,516 INFO L93 Difference]: Finished difference Result 11189 states and 29822 transitions. [2019-12-27 08:40:32,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:40:32,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2019-12-27 08:40:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:32,545 INFO L225 Difference]: With dead ends: 11189 [2019-12-27 08:40:32,546 INFO L226 Difference]: Without dead ends: 11189 [2019-12-27 08:40:32,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:40:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11189 states. [2019-12-27 08:40:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11189 to 9719. [2019-12-27 08:40:32,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2019-12-27 08:40:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 26039 transitions. [2019-12-27 08:40:32,811 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 26039 transitions. Word has length 81 [2019-12-27 08:40:32,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:32,811 INFO L462 AbstractCegarLoop]: Abstraction has 9719 states and 26039 transitions. [2019-12-27 08:40:32,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:40:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 26039 transitions. [2019-12-27 08:40:32,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-12-27 08:40:32,822 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:32,822 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:33,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:40:33,026 INFO L410 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:33,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2026788270, now seen corresponding path program 1 times [2019-12-27 08:40:33,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:33,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149940632] [2019-12-27 08:40:33,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:33,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149940632] [2019-12-27 08:40:33,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:33,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:40:33,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411477022] [2019-12-27 08:40:33,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:40:33,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:33,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:40:33,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:33,080 INFO L87 Difference]: Start difference. First operand 9719 states and 26039 transitions. Second operand 3 states. [2019-12-27 08:40:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:33,130 INFO L93 Difference]: Finished difference Result 4952 states and 12538 transitions. [2019-12-27 08:40:33,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:40:33,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-12-27 08:40:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:33,151 INFO L225 Difference]: With dead ends: 4952 [2019-12-27 08:40:33,152 INFO L226 Difference]: Without dead ends: 4952 [2019-12-27 08:40:33,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:40:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2019-12-27 08:40:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 4847. [2019-12-27 08:40:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4847 states. [2019-12-27 08:40:33,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 12273 transitions. [2019-12-27 08:40:33,698 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 12273 transitions. Word has length 85 [2019-12-27 08:40:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:33,698 INFO L462 AbstractCegarLoop]: Abstraction has 4847 states and 12273 transitions. [2019-12-27 08:40:33,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:40:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 12273 transitions. [2019-12-27 08:40:33,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-27 08:40:33,706 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:33,707 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:33,707 INFO L410 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:33,707 INFO L82 PathProgramCache]: Analyzing trace with hash -416587676, now seen corresponding path program 1 times [2019-12-27 08:40:33,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:33,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329147577] [2019-12-27 08:40:33,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:33,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329147577] [2019-12-27 08:40:33,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:33,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 08:40:33,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555128997] [2019-12-27 08:40:33,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:40:33,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:33,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:40:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:40:33,885 INFO L87 Difference]: Start difference. First operand 4847 states and 12273 transitions. Second operand 7 states. [2019-12-27 08:40:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:34,087 INFO L93 Difference]: Finished difference Result 6386 states and 16127 transitions. [2019-12-27 08:40:34,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 08:40:34,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2019-12-27 08:40:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:34,104 INFO L225 Difference]: With dead ends: 6386 [2019-12-27 08:40:34,105 INFO L226 Difference]: Without dead ends: 6386 [2019-12-27 08:40:34,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-12-27 08:40:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6386 states. [2019-12-27 08:40:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6386 to 5252. [2019-12-27 08:40:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2019-12-27 08:40:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 13267 transitions. [2019-12-27 08:40:34,223 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 13267 transitions. Word has length 86 [2019-12-27 08:40:34,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:34,225 INFO L462 AbstractCegarLoop]: Abstraction has 5252 states and 13267 transitions. [2019-12-27 08:40:34,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:40:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 13267 transitions. [2019-12-27 08:40:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-12-27 08:40:34,241 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:34,241 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:34,242 INFO L410 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:34,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:34,242 INFO L82 PathProgramCache]: Analyzing trace with hash -2070404036, now seen corresponding path program 1 times [2019-12-27 08:40:34,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:34,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711369670] [2019-12-27 08:40:34,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:35,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711369670] [2019-12-27 08:40:35,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:40:35,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-12-27 08:40:35,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399645481] [2019-12-27 08:40:35,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-12-27 08:40:35,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:35,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-12-27 08:40:35,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2019-12-27 08:40:35,286 INFO L87 Difference]: Start difference. First operand 5252 states and 13267 transitions. Second operand 22 states. [2019-12-27 08:40:38,206 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 08:40:38,423 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 08:40:38,607 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 08:40:38,889 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-12-27 08:40:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:39,358 INFO L93 Difference]: Finished difference Result 13175 states and 33308 transitions. [2019-12-27 08:40:39,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-12-27 08:40:39,358 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 96 [2019-12-27 08:40:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:39,388 INFO L225 Difference]: With dead ends: 13175 [2019-12-27 08:40:39,388 INFO L226 Difference]: Without dead ends: 13175 [2019-12-27 08:40:39,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=442, Invalid=2314, Unknown=0, NotChecked=0, Total=2756 [2019-12-27 08:40:39,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13175 states. [2019-12-27 08:40:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13175 to 7517. [2019-12-27 08:40:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7517 states. [2019-12-27 08:40:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 19181 transitions. [2019-12-27 08:40:39,589 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 19181 transitions. Word has length 96 [2019-12-27 08:40:39,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:39,589 INFO L462 AbstractCegarLoop]: Abstraction has 7517 states and 19181 transitions. [2019-12-27 08:40:39,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-12-27 08:40:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 19181 transitions. [2019-12-27 08:40:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-12-27 08:40:39,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:39,603 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:39,603 INFO L410 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:39,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1586701707, now seen corresponding path program 2 times [2019-12-27 08:40:39,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:39,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101233000] [2019-12-27 08:40:39,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:39,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101233000] [2019-12-27 08:40:39,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160750312] [2019-12-27 08:40:39,724 INFO L92 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 [2019-12-27 08:40:39,837 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-27 08:40:39,837 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-27 08:40:39,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-27 08:40:39,849 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:40:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:39,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:40:39,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-12-27 08:40:39,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647255330] [2019-12-27 08:40:39,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 08:40:39,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:39,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 08:40:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:40:39,905 INFO L87 Difference]: Start difference. First operand 7517 states and 19181 transitions. Second operand 9 states. [2019-12-27 08:40:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:40,023 INFO L93 Difference]: Finished difference Result 10709 states and 27083 transitions. [2019-12-27 08:40:40,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 08:40:40,023 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2019-12-27 08:40:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:40,053 INFO L225 Difference]: With dead ends: 10709 [2019-12-27 08:40:40,054 INFO L226 Difference]: Without dead ends: 10709 [2019-12-27 08:40:40,054 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-12-27 08:40:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10709 states. [2019-12-27 08:40:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10709 to 9014. [2019-12-27 08:40:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9014 states. [2019-12-27 08:40:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9014 states to 9014 states and 23051 transitions. [2019-12-27 08:40:40,393 INFO L78 Accepts]: Start accepts. Automaton has 9014 states and 23051 transitions. Word has length 113 [2019-12-27 08:40:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:40,395 INFO L462 AbstractCegarLoop]: Abstraction has 9014 states and 23051 transitions. [2019-12-27 08:40:40,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 08:40:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 9014 states and 23051 transitions. [2019-12-27 08:40:40,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-12-27 08:40:40,408 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:40,408 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:40,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:40:40,613 INFO L410 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:40,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:40,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1746196635, now seen corresponding path program 1 times [2019-12-27 08:40:40,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:40,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143168951] [2019-12-27 08:40:40,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:40,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143168951] [2019-12-27 08:40:40,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592014546] [2019-12-27 08:40:40,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:40:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:40:40,837 INFO L264 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-27 08:40:40,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:40:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:40:40,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-27 08:40:40,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2019-12-27 08:40:40,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759272153] [2019-12-27 08:40:40,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 08:40:40,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:40:40,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 08:40:40,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-12-27 08:40:40,888 INFO L87 Difference]: Start difference. First operand 9014 states and 23051 transitions. Second operand 9 states. [2019-12-27 08:40:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:40:41,091 INFO L93 Difference]: Finished difference Result 11141 states and 28247 transitions. [2019-12-27 08:40:41,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-27 08:40:41,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2019-12-27 08:40:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:40:41,111 INFO L225 Difference]: With dead ends: 11141 [2019-12-27 08:40:41,111 INFO L226 Difference]: Without dead ends: 11141 [2019-12-27 08:40:41,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2019-12-27 08:40:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11141 states. [2019-12-27 08:40:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11141 to 9143. [2019-12-27 08:40:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9143 states. [2019-12-27 08:40:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9143 states to 9143 states and 23408 transitions. [2019-12-27 08:40:41,315 INFO L78 Accepts]: Start accepts. Automaton has 9143 states and 23408 transitions. Word has length 118 [2019-12-27 08:40:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:40:41,316 INFO L462 AbstractCegarLoop]: Abstraction has 9143 states and 23408 transitions. [2019-12-27 08:40:41,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 08:40:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9143 states and 23408 transitions. [2019-12-27 08:40:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-12-27 08:40:41,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:40:41,335 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:40:41,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:40:41,547 INFO L410 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:40:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:40:41,547 INFO L82 PathProgramCache]: Analyzing trace with hash -413754298, now seen corresponding path program 1 times [2019-12-27 08:40:41,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:40:41,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169608885] [2019-12-27 08:40:41,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:40:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:40:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:40:41,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:40:41,685 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:40:41,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:40:41 BasicIcfg [2019-12-27 08:40:41,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:40:41,851 INFO L168 Benchmark]: Toolchain (without parser) took 14878.13 ms. Allocated memory was 138.9 MB in the beginning and 653.8 MB in the end (delta: 514.9 MB). Free memory was 102.0 MB in the beginning and 217.7 MB in the end (delta: -115.7 MB). Peak memory consumption was 399.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,851 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 920.44 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 131.8 MB in the end (delta: -30.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.94 ms. Allocated memory is still 202.4 MB. Free memory was 131.8 MB in the beginning and 129.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,856 INFO L168 Benchmark]: Boogie Preprocessor took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 129.1 MB in the beginning and 127.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,857 INFO L168 Benchmark]: RCFGBuilder took 640.19 ms. Allocated memory is still 202.4 MB. Free memory was 127.1 MB in the beginning and 94.8 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,858 INFO L168 Benchmark]: TraceAbstraction took 13152.22 ms. Allocated memory was 202.4 MB in the beginning and 653.8 MB in the end (delta: 451.4 MB). Free memory was 94.2 MB in the beginning and 217.7 MB in the end (delta: -123.5 MB). Peak memory consumption was 327.9 MB. Max. memory is 7.1 GB. [2019-12-27 08:40:41,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 920.44 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 131.8 MB in the end (delta: -30.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 108.94 ms. Allocated memory is still 202.4 MB. Free memory was 131.8 MB in the beginning and 129.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 129.1 MB in the beginning and 127.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 640.19 ms. Allocated memory is still 202.4 MB. Free memory was 127.1 MB in the beginning and 94.8 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13152.22 ms. Allocated memory was 202.4 MB in the beginning and 653.8 MB in the end (delta: 451.4 MB). Free memory was 94.2 MB in the beginning and 217.7 MB in the end (delta: -123.5 MB). Peak memory consumption was 327.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 919]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L913] 0 static int top=0; VAL [top=0] [L914] 0 static unsigned int arr[(5)]; VAL [arr={7:0}, top=0] [L915] 0 pthread_mutex_t m; VAL [arr={7:0}, m={9:0}, top=0] [L916] 0 _Bool flag=(0); VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L999] 0 pthread_t id1, id2; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L1001] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L968] 1 int i; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L969] 1 unsigned int tmp; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L970] 1 i=0 VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L1002] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L984] 2 int i; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L985] 2 i=0 VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L985] COND TRUE 2 i<(5) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L970] COND TRUE 1 i<(5) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L973] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L940] COND FALSE 1 !(top==(5)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L932] 1 return top; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L947] 1 stack[get_top()] = x VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L924] 1 top++ VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L950] 1 return 0; VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L975] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L977] 1 flag=(1) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L988] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L932] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L954] COND FALSE 2 !(get_top()==0) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L928] 2 top-- VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L932] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L962] EXPR 2 stack[get_top()] VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L962] 2 return stack[get_top()]; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L990] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L985] 2 i++ VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L985] COND TRUE 2 i<(5) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L988] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L932] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L954] COND TRUE 2 get_top()==0 VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L957] 2 return (-2); VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L990] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L919] 2 __VERIFIER_error() VAL [arr={7:0}, flag=1, m={9:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Result: UNSAFE, OverallTime: 12.8s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1926 SDtfs, 2604 SDslu, 9060 SDs, 0 SdLazy, 2051 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9719occurred 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: 2.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 16299 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1171 NumberOfCodeBlocks, 1171 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1039 ConstructedInterpolants, 0 QuantifiedInterpolants, 351079 SizeOfPredicates, 15 NumberOfNonLiveVariables, 704 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 55/212 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...