/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:42:12,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:42:12,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:42:12,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:42:12,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:42:12,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:42:12,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:42:12,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:42:12,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:42:12,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:42:12,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:42:12,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:42:12,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:42:12,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:42:12,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:42:12,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:42:12,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:42:12,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:42:12,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:42:12,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:42:12,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:42:12,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:42:12,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:42:12,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:42:12,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 22:42:12,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:42:12,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:42:12,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:42:12,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:42:12,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:42:12,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:42:12,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:42:12,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:42:12,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:42:12,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:42:12,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:42:12,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 22:42:12,823 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:42:12,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:42:12,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:42:12,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:42:12,825 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:42:12,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:42:12,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:42:12,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:42:12,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:42:12,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:42:12,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:42:12,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:42:12,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:42:12,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:42:12,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:42:12,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:42:12,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:42:12,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:42:12,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:42:12,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:42:12,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:42:12,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:42:12,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:42:12,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:42:12,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:42:13,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:42:13,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:42:13,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:42:13,148 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:42:13,148 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:42:13,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-18 22:42:13,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dc71c3a/18ce40fd02094376b1c3af9b934216b4/FLAGd5f1fe7d0 [2019-12-18 22:42:13,764 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:42:13,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-18 22:42:13,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dc71c3a/18ce40fd02094376b1c3af9b934216b4/FLAGd5f1fe7d0 [2019-12-18 22:42:14,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dc71c3a/18ce40fd02094376b1c3af9b934216b4 [2019-12-18 22:42:14,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:42:14,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:42:14,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:42:14,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:42:14,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:42:14,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604e4d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14, skipping insertion in model container [2019-12-18 22:42:14,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:42:14,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:42:14,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:42:14,624 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:42:14,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:42:14,754 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:42:14,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14 WrapperNode [2019-12-18 22:42:14,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:42:14,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:42:14,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:42:14,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:42:14,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:42:14,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:42:14,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:42:14,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:42:14,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... [2019-12-18 22:42:14,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:42:14,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:42:14,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:42:14,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:42:14,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:42:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:42:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:42:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:42:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:42:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:42:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:42:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:42:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:42:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:42:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:42:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:42:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:42:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:42:14,895 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:42:15,252 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:42:15,252 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:42:15,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:42:15 BoogieIcfgContainer [2019-12-18 22:42:15,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:42:15,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:42:15,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:42:15,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:42:15,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:42:14" (1/3) ... [2019-12-18 22:42:15,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f73449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:42:15, skipping insertion in model container [2019-12-18 22:42:15,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:42:14" (2/3) ... [2019-12-18 22:42:15,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f73449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:42:15, skipping insertion in model container [2019-12-18 22:42:15,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:42:15" (3/3) ... [2019-12-18 22:42:15,263 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2019-12-18 22:42:15,273 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:42:15,273 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:42:15,280 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:42:15,282 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:42:15,312 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,312 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,312 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,313 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,313 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,314 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,314 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,314 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,315 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,315 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,315 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,316 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,317 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,317 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,317 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,318 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,322 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,322 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,323 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,323 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,329 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,329 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,330 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,330 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,332 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,333 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:42:15,348 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:42:15,370 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:42:15,370 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:42:15,371 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:42:15,371 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:42:15,371 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:42:15,371 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:42:15,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:42:15,372 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:42:15,385 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 22:42:15,388 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:42:15,430 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:42:15,430 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:42:15,440 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:42:15,444 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:42:15,474 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:42:15,474 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:42:15,481 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:42:15,483 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:42:15,485 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:42:16,731 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 22:42:16,889 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-18 22:42:16,889 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 22:42:16,893 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:42:16,903 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:42:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:42:16,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:42:16,918 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:16,919 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:16,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:16,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:16,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-18 22:42:16,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:16,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349610295] [2019-12-18 22:42:16,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:17,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349610295] [2019-12-18 22:42:17,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:17,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:42:17,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695874314] [2019-12-18 22:42:17,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:42:17,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:17,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:42:17,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:17,289 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:42:17,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:17,321 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 22:42:17,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:42:17,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:42:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:17,335 INFO L225 Difference]: With dead ends: 42 [2019-12-18 22:42:17,335 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:42:17,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:17,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:42:17,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:42:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:42:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:42:17,385 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 22:42:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:17,386 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:42:17,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:42:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:42:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:42:17,390 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:17,390 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:17,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:17,391 INFO L82 PathProgramCache]: Analyzing trace with hash -731020953, now seen corresponding path program 1 times [2019-12-18 22:42:17,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:17,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847716663] [2019-12-18 22:42:17,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:17,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847716663] [2019-12-18 22:42:17,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:17,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:42:17,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396726464] [2019-12-18 22:42:17,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:42:17,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:17,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:42:17,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:42:17,494 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 22:42:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:17,519 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:42:17,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:42:17,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 22:42:17,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:17,520 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:42:17,521 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 22:42:17,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:42:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 22:42:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 22:42:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 22:42:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 22:42:17,527 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 22:42:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:17,527 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 22:42:17,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:42:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 22:42:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:42:17,528 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:17,528 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:17,529 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:17,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1301449846, now seen corresponding path program 1 times [2019-12-18 22:42:17,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:17,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011423742] [2019-12-18 22:42:17,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:17,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011423742] [2019-12-18 22:42:17,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:17,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:42:17,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736603494] [2019-12-18 22:42:17,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:42:17,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:17,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:42:17,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:17,587 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 22:42:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:17,593 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-18 22:42:17,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:42:17,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 22:42:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:17,595 INFO L225 Difference]: With dead ends: 27 [2019-12-18 22:42:17,595 INFO L226 Difference]: Without dead ends: 27 [2019-12-18 22:42:17,595 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:42:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-18 22:42:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-18 22:42:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-18 22:42:17,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-18 22:42:17,599 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-18 22:42:17,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:17,600 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-18 22:42:17,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:42:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-18 22:42:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:42:17,601 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:17,601 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:17,601 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:17,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:17,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1005356980, now seen corresponding path program 1 times [2019-12-18 22:42:17,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:17,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700839255] [2019-12-18 22:42:17,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:17,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700839255] [2019-12-18 22:42:17,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:17,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:42:17,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952453682] [2019-12-18 22:42:17,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:42:17,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:17,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:42:17,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:42:17,689 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-18 22:42:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:17,710 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 22:42:17,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:42:17,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:42:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:17,711 INFO L225 Difference]: With dead ends: 29 [2019-12-18 22:42:17,711 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 22:42:17,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:42:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 22:42:17,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 22:42:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 22:42:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 22:42:17,714 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-18 22:42:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:17,715 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 22:42:17,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:42:17,715 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 22:42:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:42:17,715 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:42:17,716 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:42:17,716 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:42:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:42:17,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 2 times [2019-12-18 22:42:17,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:42:17,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398737684] [2019-12-18 22:42:17,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:42:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:42:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:42:17,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398737684] [2019-12-18 22:42:17,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:42:17,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:42:17,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027917337] [2019-12-18 22:42:17,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:42:17,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:42:17,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:42:17,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:42:17,764 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 22:42:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:42:17,782 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 22:42:17,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:42:17,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:42:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:42:17,783 INFO L225 Difference]: With dead ends: 16 [2019-12-18 22:42:17,783 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:42:17,783 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:42:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:42:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:42:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:42:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:42:17,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:42:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:42:17,784 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:42:17,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:42:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:42:17,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:42:17,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:42:17 BasicIcfg [2019-12-18 22:42:17,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:42:17,791 INFO L168 Benchmark]: Toolchain (without parser) took 3715.25 ms. Allocated memory was 138.4 MB in the beginning and 247.5 MB in the end (delta: 109.1 MB). Free memory was 100.6 MB in the beginning and 161.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,792 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.60 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.2 MB in the beginning and 160.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.73 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 157.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,795 INFO L168 Benchmark]: Boogie Preprocessor took 24.26 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,795 INFO L168 Benchmark]: RCFGBuilder took 427.69 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 136.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,796 INFO L168 Benchmark]: TraceAbstraction took 2533.51 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 161.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:42:17,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.60 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.2 MB in the beginning and 160.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.73 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 157.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.26 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.69 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 136.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2533.51 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.3 MB in the beginning and 161.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...