/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:14:47,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:14:47,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:14:47,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:14:47,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:14:47,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:14:47,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:14:47,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:14:47,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:14:47,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:14:47,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:14:47,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:14:47,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:14:47,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:14:47,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:14:47,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:14:47,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:14:47,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:14:47,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:14:47,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:14:47,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:14:47,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:14:47,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:14:47,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:14:47,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:14:47,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:14:47,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:14:47,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:14:47,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:14:47,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:14:47,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:14:47,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:14:47,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:14:47,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:14:47,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:14:47,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:14:47,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 15:14:47,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:14:47,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:14:47,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:14:47,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:14:47,780 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:14:47,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:14:47,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:14:47,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:14:47,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:14:47,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:14:47,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:14:47,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:14:47,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:14:47,783 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:14:47,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:14:47,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:14:47,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:14:47,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:14:47,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:14:47,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:14:47,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:14:47,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:14:47,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:14:47,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:14:47,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:14:47,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:14:47,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:14:47,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:14:47,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 15:14:47,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:14:48,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:14:48,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:14:48,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:14:48,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:14:48,079 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:14:48,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-18 15:14:48,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb667cb8/f43e84307a8d40a4955f8dd240dc515d/FLAGdc63854de [2019-12-18 15:14:48,721 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:14:48,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-18 15:14:48,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb667cb8/f43e84307a8d40a4955f8dd240dc515d/FLAGdc63854de [2019-12-18 15:14:48,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb667cb8/f43e84307a8d40a4955f8dd240dc515d [2019-12-18 15:14:48,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:14:48,957 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:14:48,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:14:48,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:14:48,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:14:48,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:14:48" (1/1) ... [2019-12-18 15:14:48,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c134131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:48, skipping insertion in model container [2019-12-18 15:14:48,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:14:48" (1/1) ... [2019-12-18 15:14:48,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:14:49,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:14:49,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:14:49,465 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:14:49,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:14:49,601 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:14:49,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49 WrapperNode [2019-12-18 15:14:49,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:14:49,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:14:49,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:14:49,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:14:49,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:14:49,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:14:49,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:14:49,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:14:49,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (1/1) ... [2019-12-18 15:14:49,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:14:49,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:14:49,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:14:49,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:14:49,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (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 15:14:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:14:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 15:14:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:14:49,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:14:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 15:14:49,754 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 15:14:49,754 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 15:14:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 15:14:49,755 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 15:14:49,756 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 15:14:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 15:14:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:14:49,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:14:49,758 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 15:14:50,115 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:14:50,116 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 15:14:50,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:14:50 BoogieIcfgContainer [2019-12-18 15:14:50,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:14:50,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:14:50,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:14:50,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:14:50,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:14:48" (1/3) ... [2019-12-18 15:14:50,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39da4069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:14:50, skipping insertion in model container [2019-12-18 15:14:50,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:14:49" (2/3) ... [2019-12-18 15:14:50,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39da4069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:14:50, skipping insertion in model container [2019-12-18 15:14:50,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:14:50" (3/3) ... [2019-12-18 15:14:50,126 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2019-12-18 15:14:50,135 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:14:50,135 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:14:50,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:14:50,143 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:14:50,177 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,177 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,177 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,178 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,178 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,179 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,179 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,179 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,180 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,180 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,180 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,180 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,181 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,182 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,182 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,182 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,187 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,187 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,187 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,188 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,194 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,195 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,196 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,196 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,202 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,202 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,203 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:14:50,219 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:14:50,239 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:14:50,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:14:50,239 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:14:50,239 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:14:50,240 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:14:50,240 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:14:50,240 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:14:50,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:14:50,255 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 15:14:50,257 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 15:14:50,301 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 15:14:50,301 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:14:50,309 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 15:14:50,313 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 15:14:50,331 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 15:14:50,332 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:14:50,333 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 15:14:50,336 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 15:14:50,337 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:14:51,965 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-18 15:14:51,966 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 15:14:51,969 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 15:14:51,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 15:14:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 15:14:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:14:51,989 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:51,990 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:51,991 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:51,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-18 15:14:52,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:52,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011034807] [2019-12-18 15:14:52,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:52,264 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 15:14:52,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011034807] [2019-12-18 15:14:52,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:52,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:14:52,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536523919] [2019-12-18 15:14:52,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:14:52,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:52,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:14:52,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:14:52,285 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 15:14:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:52,330 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 15:14:52,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:14:52,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 15:14:52,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:52,362 INFO L225 Difference]: With dead ends: 42 [2019-12-18 15:14:52,362 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 15:14:52,364 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 15:14:52,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 15:14:52,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 15:14:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 15:14:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 15:14:52,419 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 15:14:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:52,420 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 15:14:52,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:14:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 15:14:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:14:52,423 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:52,424 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:52,424 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-18 15:14:52,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:52,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272693277] [2019-12-18 15:14:52,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:52,510 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 15:14:52,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272693277] [2019-12-18 15:14:52,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:52,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:14:52,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675564652] [2019-12-18 15:14:52,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:14:52,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:52,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:14:52,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:14:52,513 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 15:14:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:52,529 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 15:14:52,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:14:52,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 15:14:52,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:52,530 INFO L225 Difference]: With dead ends: 36 [2019-12-18 15:14:52,531 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 15:14:52,532 INFO L631 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 [2019-12-18 15:14:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 15:14:52,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 15:14:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 15:14:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 15:14:52,536 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 15:14:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:52,536 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 15:14:52,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:14:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 15:14:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:14:52,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:52,537 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:52,537 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:52,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-18 15:14:52,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:52,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605440862] [2019-12-18 15:14:52,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:52,688 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 15:14:52,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605440862] [2019-12-18 15:14:52,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:52,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:14:52,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104139362] [2019-12-18 15:14:52,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:14:52,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:52,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:14:52,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:14:52,692 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-18 15:14:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:52,741 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 15:14:52,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:14:52,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 15:14:52,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:52,742 INFO L225 Difference]: With dead ends: 25 [2019-12-18 15:14:52,742 INFO L226 Difference]: Without dead ends: 19 [2019-12-18 15:14:52,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:14:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-18 15:14:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-18 15:14:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-18 15:14:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-18 15:14:52,747 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-18 15:14:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:52,747 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-18 15:14:52,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:14:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-18 15:14:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:14:52,748 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:52,748 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:52,748 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:52,749 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-18 15:14:52,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:52,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870907464] [2019-12-18 15:14:52,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:52,867 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 15:14:52,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870907464] [2019-12-18 15:14:52,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:52,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:14:52,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389839161] [2019-12-18 15:14:52,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 15:14:52,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:52,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 15:14:52,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 15:14:52,870 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-18 15:14:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:52,943 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-18 15:14:52,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:14:52,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 15:14:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:52,945 INFO L225 Difference]: With dead ends: 19 [2019-12-18 15:14:52,945 INFO L226 Difference]: Without dead ends: 16 [2019-12-18 15:14:52,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 15:14:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-18 15:14:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-18 15:14:52,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-18 15:14:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-18 15:14:52,950 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-18 15:14:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:52,951 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-18 15:14:52,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 15:14:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-18 15:14:52,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:14:52,951 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:52,952 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:52,952 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:52,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:52,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-18 15:14:52,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:52,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819119509] [2019-12-18 15:14:52,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:53,012 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 15:14:53,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819119509] [2019-12-18 15:14:53,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:53,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:14:53,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502636965] [2019-12-18 15:14:53,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:14:53,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:53,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:14:53,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:14:53,015 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-18 15:14:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:53,038 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-18 15:14:53,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:14:53,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:14:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:53,039 INFO L225 Difference]: With dead ends: 18 [2019-12-18 15:14:53,039 INFO L226 Difference]: Without dead ends: 12 [2019-12-18 15:14:53,039 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 15:14:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-18 15:14:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-18 15:14:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-18 15:14:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-18 15:14:53,043 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-18 15:14:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:53,050 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-18 15:14:53,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:14:53,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-18 15:14:53,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:14:53,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:14:53,051 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:14:53,051 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:14:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:14:53,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-18 15:14:53,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:14:53,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445096450] [2019-12-18 15:14:53,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:14:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:14:53,103 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 15:14:53,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445096450] [2019-12-18 15:14:53,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:14:53,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:14:53,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984209079] [2019-12-18 15:14:53,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:14:53,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:14:53,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:14:53,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:14:53,106 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-18 15:14:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:14:53,128 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-18 15:14:53,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:14:53,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:14:53,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:14:53,129 INFO L225 Difference]: With dead ends: 11 [2019-12-18 15:14:53,129 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:14:53,130 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 15:14:53,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:14:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:14:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:14:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:14:53,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 15:14:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:14:53,132 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:14:53,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:14:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:14:53,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:14:53,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:14:53 BasicIcfg [2019-12-18 15:14:53,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:14:53,141 INFO L168 Benchmark]: Toolchain (without parser) took 4183.48 ms. Allocated memory was 137.9 MB in the beginning and 249.6 MB in the end (delta: 111.7 MB). Free memory was 100.5 MB in the beginning and 115.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 96.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,142 INFO L168 Benchmark]: CDTParser took 2.05 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.52 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 159.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,144 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,145 INFO L168 Benchmark]: RCFGBuilder took 440.28 ms. Allocated memory is still 202.9 MB. Free memory was 156.4 MB in the beginning and 135.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,146 INFO L168 Benchmark]: TraceAbstraction took 3020.00 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 135.7 MB in the beginning and 115.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:14:53,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.05 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.52 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 159.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.75 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.28 ms. Allocated memory is still 202.9 MB. Free memory was 156.4 MB in the beginning and 135.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3020.00 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 135.7 MB in the beginning and 115.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...