/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:30:18,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:30:18,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:30:18,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:30:18,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:30:18,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:30:18,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:30:18,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:30:18,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:30:18,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:30:18,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:30:18,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:30:18,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:30:18,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:30:18,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:30:18,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:30:18,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:30:18,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:30:18,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:30:18,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:30:18,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:30:18,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:30:18,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:30:18,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:30:18,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:30:18,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:30:18,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:30:18,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:30:18,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:30:18,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:30:18,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:30:18,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:30:18,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:30:18,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:30:18,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:30:18,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:30:18,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:30:18,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:30:18,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:30:18,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:30:18,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:30:18,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:30:18,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:30:18,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:30:18,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:30:18,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:30:18,808 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:30:18,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:30:18,809 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:30:18,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:30:18,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:30:18,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:30:18,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:30:18,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:30:18,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:30:18,811 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:30:18,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:30:18,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:30:18,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:30:18,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:30:18,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:30:18,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:30:18,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:30:18,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:18,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:30:18,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:30:18,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:30:18,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:30:18,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:30:18,814 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:30:18,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:30:18,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:30:18,815 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:30:19,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:30:19,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:30:19,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:30:19,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:30:19,157 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:30:19,157 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2020-10-16 12:30:19,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af8dacf6a/362dda61cfdb4c94a4764adfa0fa8284/FLAGe23ae1e72 [2020-10-16 12:30:19,838 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:30:19,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack-2.i [2020-10-16 12:30:19,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af8dacf6a/362dda61cfdb4c94a4764adfa0fa8284/FLAGe23ae1e72 [2020-10-16 12:30:20,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af8dacf6a/362dda61cfdb4c94a4764adfa0fa8284 [2020-10-16 12:30:20,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:30:20,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:30:20,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:20,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:30:20,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:30:20,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:20,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24be1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20, skipping insertion in model container [2020-10-16 12:30:20,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:20,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:30:20,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:30:20,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:20,765 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:30:20,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:20,978 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:30:20,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20 WrapperNode [2020-10-16 12:30:20,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:20,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:20,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:30:20,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:30:20,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:21,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:30:21,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:30:21,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:30:21,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... [2020-10-16 12:30:21,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:30:21,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:30:21,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:30:21,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:30:21,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 12:30:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 12:30:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 12:30:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 12:30:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:30:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:30:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:30:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:30:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:30:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:30:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:30:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:30:21,166 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:30:21,696 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:30:21,697 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 12:30:21,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:21 BoogieIcfgContainer [2020-10-16 12:30:21,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:30:21,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:30:21,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:30:21,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:30:21,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:30:20" (1/3) ... [2020-10-16 12:30:21,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9b8900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:21, skipping insertion in model container [2020-10-16 12:30:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:20" (2/3) ... [2020-10-16 12:30:21,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9b8900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:21, skipping insertion in model container [2020-10-16 12:30:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:21" (3/3) ... [2020-10-16 12:30:21,718 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-10-16 12:30:21,732 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:30:21,733 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:30:21,758 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:30:21,759 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:30:21,826 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,826 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,827 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,828 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,828 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,830 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,833 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,833 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,834 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,835 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,835 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,836 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,836 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,837 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,837 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,838 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,839 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,839 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,840 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,845 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,845 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,846 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,847 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,847 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,848 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,848 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,849 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,849 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,850 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,853 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,853 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,854 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,854 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,854 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,854 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,856 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,856 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,859 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,860 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,861 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,861 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,862 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,862 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,862 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,862 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,863 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,863 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,863 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,893 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,893 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,894 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,894 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,894 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,894 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,894 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,895 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,895 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,900 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,900 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,901 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,902 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,902 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,903 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,903 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,918 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,918 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,919 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,919 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,919 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,920 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,921 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,922 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:21,935 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:30:21,952 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:30:21,972 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:30:21,972 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:30:21,972 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:30:21,972 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:30:21,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:30:21,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:30:21,973 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:30:21,973 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:30:21,989 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:30:21,990 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 149 transitions, 320 flow [2020-10-16 12:30:21,993 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 149 transitions, 320 flow [2020-10-16 12:30:21,995 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 320 flow [2020-10-16 12:30:22,073 INFO L129 PetriNetUnfolder]: 11/149 cut-off events. [2020-10-16 12:30:22,073 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:30:22,084 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 149 events. 11/149 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 386 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 12:30:22,095 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 12:30:24,893 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 12:30:25,036 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-16 12:30:25,597 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-10-16 12:30:25,874 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-16 12:30:25,894 INFO L132 LiptonReduction]: Checked pairs total: 12406 [2020-10-16 12:30:25,895 INFO L134 LiptonReduction]: Total number of compositions: 131 [2020-10-16 12:30:25,904 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 42 transitions, 106 flow [2020-10-16 12:30:25,939 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 385 states. [2020-10-16 12:30:25,942 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-10-16 12:30:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:30:25,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:25,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:30:25,954 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:25,962 INFO L82 PathProgramCache]: Analyzing trace with hash 827700574, now seen corresponding path program 1 times [2020-10-16 12:30:25,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:25,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421106935] [2020-10-16 12:30:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:26,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421106935] [2020-10-16 12:30:26,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:26,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:26,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [885795036] [2020-10-16 12:30:26,281 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,285 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:26,303 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 12:30:26,303 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:26,310 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:26,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:26,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:26,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:26,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,328 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-10-16 12:30:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:26,424 INFO L93 Difference]: Finished difference Result 702 states and 1789 transitions. [2020-10-16 12:30:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:26,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 12:30:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:26,459 INFO L225 Difference]: With dead ends: 702 [2020-10-16 12:30:26,460 INFO L226 Difference]: Without dead ends: 680 [2020-10-16 12:30:26,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-16 12:30:26,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 497. [2020-10-16 12:30:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-16 12:30:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 1332 transitions. [2020-10-16 12:30:26,646 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 1332 transitions. Word has length 6 [2020-10-16 12:30:26,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:26,647 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 1332 transitions. [2020-10-16 12:30:26,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 1332 transitions. [2020-10-16 12:30:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:30:26,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:26,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:26,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:30:26,650 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:26,650 INFO L82 PathProgramCache]: Analyzing trace with hash -694884820, now seen corresponding path program 1 times [2020-10-16 12:30:26,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:26,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455951888] [2020-10-16 12:30:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:26,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455951888] [2020-10-16 12:30:26,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:26,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:26,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1816259815] [2020-10-16 12:30:26,766 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,766 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:26,768 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:30:26,768 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:26,768 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:26,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:26,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:26,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:26,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,771 INFO L87 Difference]: Start difference. First operand 497 states and 1332 transitions. Second operand 3 states. [2020-10-16 12:30:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:26,788 INFO L93 Difference]: Finished difference Result 615 states and 1590 transitions. [2020-10-16 12:30:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:26,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:30:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:26,794 INFO L225 Difference]: With dead ends: 615 [2020-10-16 12:30:26,794 INFO L226 Difference]: Without dead ends: 588 [2020-10-16 12:30:26,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-10-16 12:30:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 548. [2020-10-16 12:30:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-16 12:30:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 1459 transitions. [2020-10-16 12:30:26,826 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 1459 transitions. Word has length 9 [2020-10-16 12:30:26,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:26,827 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 1459 transitions. [2020-10-16 12:30:26,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 1459 transitions. [2020-10-16 12:30:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:30:26,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:26,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:26,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:30:26,830 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:26,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:26,830 INFO L82 PathProgramCache]: Analyzing trace with hash 2025683329, now seen corresponding path program 1 times [2020-10-16 12:30:26,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:26,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906551107] [2020-10-16 12:30:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:26,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:26,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906551107] [2020-10-16 12:30:26,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:26,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:26,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [169060900] [2020-10-16 12:30:26,910 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:26,911 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:26,913 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 12:30:26,913 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:26,913 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:26,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:26,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:26,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:26,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,914 INFO L87 Difference]: Start difference. First operand 548 states and 1459 transitions. Second operand 3 states. [2020-10-16 12:30:26,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:26,945 INFO L93 Difference]: Finished difference Result 590 states and 1567 transitions. [2020-10-16 12:30:26,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:26,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:30:26,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:26,950 INFO L225 Difference]: With dead ends: 590 [2020-10-16 12:30:26,951 INFO L226 Difference]: Without dead ends: 590 [2020-10-16 12:30:26,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-10-16 12:30:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2020-10-16 12:30:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-10-16 12:30:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1567 transitions. [2020-10-16 12:30:26,975 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1567 transitions. Word has length 10 [2020-10-16 12:30:26,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:26,975 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 1567 transitions. [2020-10-16 12:30:26,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1567 transitions. [2020-10-16 12:30:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:30:26,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:26,984 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:26,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:30:26,984 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash -2079431227, now seen corresponding path program 1 times [2020-10-16 12:30:26,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:26,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255406811] [2020-10-16 12:30:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:27,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255406811] [2020-10-16 12:30:27,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026547943] [2020-10-16 12:30:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:27,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 12:30:27,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:27,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:27,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 12:30:27,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [484327307] [2020-10-16 12:30:27,231 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:27,233 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:27,236 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-16 12:30:27,236 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:27,237 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:27,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:30:27,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:27,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:30:27,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:27,238 INFO L87 Difference]: Start difference. First operand 590 states and 1567 transitions. Second operand 5 states. [2020-10-16 12:30:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:27,337 INFO L93 Difference]: Finished difference Result 1106 states and 2834 transitions. [2020-10-16 12:30:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:27,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:30:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:27,346 INFO L225 Difference]: With dead ends: 1106 [2020-10-16 12:30:27,346 INFO L226 Difference]: Without dead ends: 1106 [2020-10-16 12:30:27,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2020-10-16 12:30:27,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 806. [2020-10-16 12:30:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-10-16 12:30:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 2150 transitions. [2020-10-16 12:30:27,377 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 2150 transitions. Word has length 14 [2020-10-16 12:30:27,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:27,378 INFO L481 AbstractCegarLoop]: Abstraction has 806 states and 2150 transitions. [2020-10-16 12:30:27,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:30:27,378 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 2150 transitions. [2020-10-16 12:30:27,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:27,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:27,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:27,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:27,596 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:27,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:27,597 INFO L82 PathProgramCache]: Analyzing trace with hash -928241881, now seen corresponding path program 1 times [2020-10-16 12:30:27,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:27,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654682276] [2020-10-16 12:30:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:27,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654682276] [2020-10-16 12:30:27,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:27,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:30:27,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1261013094] [2020-10-16 12:30:27,648 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:27,651 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:27,654 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-10-16 12:30:27,654 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:27,664 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:27,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:30:27,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:30:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:30:27,666 INFO L87 Difference]: Start difference. First operand 806 states and 2150 transitions. Second operand 4 states. [2020-10-16 12:30:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:27,694 INFO L93 Difference]: Finished difference Result 369 states and 831 transitions. [2020-10-16 12:30:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:27,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:30:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:27,698 INFO L225 Difference]: With dead ends: 369 [2020-10-16 12:30:27,698 INFO L226 Difference]: Without dead ends: 365 [2020-10-16 12:30:27,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:30:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-16 12:30:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 335. [2020-10-16 12:30:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-16 12:30:27,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 746 transitions. [2020-10-16 12:30:27,708 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 746 transitions. Word has length 17 [2020-10-16 12:30:27,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:27,709 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 746 transitions. [2020-10-16 12:30:27,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:30:27,709 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 746 transitions. [2020-10-16 12:30:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:27,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:27,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:27,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:30:27,710 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:27,711 INFO L82 PathProgramCache]: Analyzing trace with hash 109793536, now seen corresponding path program 1 times [2020-10-16 12:30:27,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:27,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980072068] [2020-10-16 12:30:27,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:27,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980072068] [2020-10-16 12:30:27,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:27,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:30:27,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [263203668] [2020-10-16 12:30:27,787 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:27,790 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:27,796 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-10-16 12:30:27,797 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:27,908 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:27,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:30:27,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:27,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:30:27,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:30:27,909 INFO L87 Difference]: Start difference. First operand 335 states and 746 transitions. Second operand 5 states. [2020-10-16 12:30:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:28,000 INFO L93 Difference]: Finished difference Result 521 states and 1153 transitions. [2020-10-16 12:30:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:30:28,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 12:30:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:28,004 INFO L225 Difference]: With dead ends: 521 [2020-10-16 12:30:28,004 INFO L226 Difference]: Without dead ends: 521 [2020-10-16 12:30:28,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:30:28,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-10-16 12:30:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 387. [2020-10-16 12:30:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-10-16 12:30:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 865 transitions. [2020-10-16 12:30:28,016 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 865 transitions. Word has length 18 [2020-10-16 12:30:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:28,016 INFO L481 AbstractCegarLoop]: Abstraction has 387 states and 865 transitions. [2020-10-16 12:30:28,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:30:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 865 transitions. [2020-10-16 12:30:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:28,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:28,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:28,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:30:28,018 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:28,019 INFO L82 PathProgramCache]: Analyzing trace with hash -557418516, now seen corresponding path program 1 times [2020-10-16 12:30:28,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:28,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884189239] [2020-10-16 12:30:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:28,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884189239] [2020-10-16 12:30:28,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:28,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-16 12:30:28,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1380139100] [2020-10-16 12:30:28,457 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:28,460 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:28,468 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-10-16 12:30:28,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:28,558 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 2, 1] term [2020-10-16 12:30:28,559 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:28,592 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 2, 1] term [2020-10-16 12:30:28,593 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:28,602 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 2, 1] term [2020-10-16 12:30:28,602 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:28,610 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:28,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 12:30:28,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:28,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 12:30:28,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:30:28,611 INFO L87 Difference]: Start difference. First operand 387 states and 865 transitions. Second operand 15 states. [2020-10-16 12:30:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:29,927 INFO L93 Difference]: Finished difference Result 765 states and 1674 transitions. [2020-10-16 12:30:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-16 12:30:29,928 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 22 [2020-10-16 12:30:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:29,933 INFO L225 Difference]: With dead ends: 765 [2020-10-16 12:30:29,933 INFO L226 Difference]: Without dead ends: 765 [2020-10-16 12:30:29,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2020-10-16 12:30:29,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-16 12:30:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 490. [2020-10-16 12:30:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-16 12:30:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1102 transitions. [2020-10-16 12:30:29,950 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1102 transitions. Word has length 22 [2020-10-16 12:30:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:29,950 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 1102 transitions. [2020-10-16 12:30:29,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 12:30:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1102 transitions. [2020-10-16 12:30:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:29,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:29,952 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 12:30:29,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:30:29,952 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:29,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1386200876, now seen corresponding path program 2 times [2020-10-16 12:30:29,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:29,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834838758] [2020-10-16 12:30:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:30,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834838758] [2020-10-16 12:30:30,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009391991] [2020-10-16 12:30:30,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:30,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 12:30:30,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 12:30:30,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 12:30:30,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:30,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:30,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 12:30:30,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [323464571] [2020-10-16 12:30:30,224 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:30,228 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:30,232 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-10-16 12:30:30,233 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:30,233 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:30,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:30,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:30,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:30,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:30,235 INFO L87 Difference]: Start difference. First operand 490 states and 1102 transitions. Second operand 7 states. [2020-10-16 12:30:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:30,306 INFO L93 Difference]: Finished difference Result 899 states and 1980 transitions. [2020-10-16 12:30:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:30,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:30:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:30,312 INFO L225 Difference]: With dead ends: 899 [2020-10-16 12:30:30,312 INFO L226 Difference]: Without dead ends: 899 [2020-10-16 12:30:30,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-10-16 12:30:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 608. [2020-10-16 12:30:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-16 12:30:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1383 transitions. [2020-10-16 12:30:30,332 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1383 transitions. Word has length 22 [2020-10-16 12:30:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:30,333 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 1383 transitions. [2020-10-16 12:30:30,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1383 transitions. [2020-10-16 12:30:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:30,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:30,335 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:30,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:30,548 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:30,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1472402434, now seen corresponding path program 1 times [2020-10-16 12:30:30,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:30,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627204674] [2020-10-16 12:30:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:30,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:30,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:30,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:30:30,740 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:30:30,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:30:30,742 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:30,742 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:30,742 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:30,753 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [568] [568] L4-->L978-1: Formula: (and (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In-48899628 4294967296))) (let ((.cse1 (<= .cse0 2147483647))) (or (and (= |t1Thread1of1ForFork0_push_#in~x_Out-48899628| (+ .cse0 (- 4294967296))) (not .cse1)) (and .cse1 (= |t1Thread1of1ForFork0_push_#in~x_Out-48899628| .cse0))))) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out-48899628| |~#arr~0.offset_In-48899628|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out-48899628| |~#arr~0.base_In-48899628|) (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-48899628 0))) InVars {~#arr~0.offset=|~#arr~0.offset_In-48899628|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-48899628, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-48899628, ~#arr~0.base=|~#arr~0.base_In-48899628|} OutVars{t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-48899628|, ~#arr~0.offset=|~#arr~0.offset_In-48899628|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In-48899628, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-48899628|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-48899628, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-48899628|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-48899628|, ~#arr~0.base=|~#arr~0.base_In-48899628|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-10-16 12:30:30,759 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [569] [569] L978-2-->L981: Formula: (and (= ~flag~0_Out-487909456 1) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In-487909456|)) (<= |t1Thread1of1ForFork0_#t~ret44_In-487909456| 2147483647) (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In-487909456| 2147483648))) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In-487909456|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out-487909456|, ~flag~0=~flag~0_Out-487909456} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-16 12:30:30,797 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [579] [579] L993-3-->L988-6: Formula: (and (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In590702723| 2147483648)) (= |#pthreadsMutex_Out590702723| (store |#pthreadsMutex_In590702723| |~#m~0.base_In590702723| (store (select |#pthreadsMutex_In590702723| |~#m~0.base_In590702723|) |~#m~0.offset_In590702723| 0))) (<= |t2Thread1of1ForFork1_#t~ret47_In590702723| 2147483647) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In590702723|)) (= t2Thread1of1ForFork1_~i~1_Out590702723 (+ t2Thread1of1ForFork1_~i~1_In590702723 1))) InVars {#pthreadsMutex=|#pthreadsMutex_In590702723|, ~#m~0.base=|~#m~0.base_In590702723|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In590702723|, ~#m~0.offset=|~#m~0.offset_In590702723|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In590702723} OutVars{#pthreadsMutex=|#pthreadsMutex_Out590702723|, ~#m~0.base=|~#m~0.base_In590702723|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out590702723|, ~#m~0.offset=|~#m~0.offset_In590702723|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out590702723|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out590702723} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 12:30:30,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:30:30 BasicIcfg [2020-10-16 12:30:30,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:30:30,856 INFO L168 Benchmark]: Toolchain (without parser) took 10768.11 ms. Allocated memory was 147.8 MB in the beginning and 331.4 MB in the end (delta: 183.5 MB). Free memory was 101.6 MB in the beginning and 294.6 MB in the end (delta: -193.0 MB). Peak memory consumption was 162.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,857 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:30:30,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 891.47 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 135.6 MB in the end (delta: -34.2 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 205.0 MB. Free memory was 135.6 MB in the beginning and 133.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,859 INFO L168 Benchmark]: Boogie Preprocessor took 39.55 ms. Allocated memory is still 205.0 MB. Free memory was 133.0 MB in the beginning and 131.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,860 INFO L168 Benchmark]: RCFGBuilder took 616.41 ms. Allocated memory is still 205.0 MB. Free memory was 131.1 MB in the beginning and 97.1 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,861 INFO L168 Benchmark]: TraceAbstraction took 9148.73 ms. Allocated memory was 205.0 MB in the beginning and 331.4 MB in the end (delta: 126.4 MB). Free memory was 97.1 MB in the beginning and 294.6 MB in the end (delta: -197.5 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:30,865 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 891.47 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 135.6 MB in the end (delta: -34.2 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 205.0 MB. Free memory was 135.6 MB in the beginning and 133.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.55 ms. Allocated memory is still 205.0 MB. Free memory was 133.0 MB in the beginning and 131.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 616.41 ms. Allocated memory is still 205.0 MB. Free memory was 131.1 MB in the beginning and 97.1 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9148.73 ms. Allocated memory was 205.0 MB in the beginning and 331.4 MB in the end (delta: 126.4 MB). Free memory was 97.1 MB in the beginning and 294.6 MB in the end (delta: -197.5 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3661 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 243 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 144 PlacesBefore, 42 PlacesAfterwards, 149 TransitionsBefore, 42 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 5 ChoiceCompositions, 131 TotalNumberOfCompositions, 12406 MoverChecksTotal - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(5)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1002] 0 pthread_t id1, id2; [L1004] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={3:0}, flag=0, m={6:0}, top=0] [L971] 1 int i; [L972] 1 unsigned int tmp; [L973] 1 i=0 VAL [arr={3:0}, flag=0, m={6:0}, top=0] [L1005] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={3:0}, flag=0, m={6:0}, top=0] [L987] 2 int i; [L988] 2 i=0 VAL [arr={3:0}, flag=0, m={6:0}, top=0] [L973] COND TRUE 1 i<(5) [L976] 1 tmp = __VERIFIER_nondet_uint() [L943] COND FALSE 1 !(top==(5)) [L935] 1 return top; [L950] 1 stack[get_top()] = x VAL [arr={3:0}, flag=0, m={6:0}, top=0] [L927] 1 top++ [L953] 1 return 0; [L973] 1 i++ VAL [arr={3:0}, flag=1, m={6:0}, top=1] [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; VAL [arr={3:0}, flag=1, m={6:0}, top=1] [L957] COND FALSE 2 !(get_top()==0) [L931] 2 top-- VAL [arr={3:0}, flag=1, m={6:0}, top=0] [L935] 2 return top; [L965] EXPR 2 stack[get_top()] [L965] 2 return stack[get_top()]; [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; [L957] COND TRUE 2 get_top()==0 [L960] 2 return (-2); [L993] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={3:0}, flag=1, m={6:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 138 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.7s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 426 SDtfs, 486 SDslu, 1255 SDs, 0 SdLazy, 892 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 71 SyntacticMatches, 15 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=806occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 1253 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 13067 SizeOfPredicates, 5 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...