/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 19:21:37,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 19:21:37,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 19:21:37,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 19:21:37,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 19:21:37,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 19:21:37,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 19:21:37,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 19:21:37,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 19:21:37,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 19:21:37,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 19:21:37,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 19:21:37,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 19:21:37,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 19:21:37,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 19:21:37,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 19:21:37,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 19:21:37,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 19:21:37,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 19:21:37,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 19:21:37,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 19:21:37,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 19:21:37,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 19:21:37,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 19:21:37,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 19:21:37,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 19:21:37,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 19:21:37,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 19:21:37,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 19:21:37,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 19:21:37,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 19:21:37,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 19:21:37,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 19:21:37,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 19:21:37,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 19:21:37,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 19:21:37,711 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-MCR.epf [2019-12-27 19:21:37,725 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 19:21:37,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 19:21:37,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 19:21:37,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 19:21:37,727 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 19:21:37,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 19:21:37,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 19:21:37,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 19:21:37,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 19:21:37,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 19:21:37,729 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 19:21:37,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 19:21:37,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 19:21:37,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 19:21:37,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 19:21:37,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 19:21:37,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 19:21:37,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 19:21:37,731 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 19:21:37,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 19:21:37,732 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 19:21:37,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 19:21:38,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 19:21:38,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 19:21:38,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 19:21:38,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 19:21:38,076 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 19:21:38,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 19:21:38,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b65791a/1e74a84f94ec4a85b2c9504b9094c0f9/FLAGfa1913aea [2019-12-27 19:21:38,695 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 19:21:38,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 19:21:38,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b65791a/1e74a84f94ec4a85b2c9504b9094c0f9/FLAGfa1913aea [2019-12-27 19:21:38,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b65791a/1e74a84f94ec4a85b2c9504b9094c0f9 [2019-12-27 19:21:39,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 19:21:39,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 19:21:39,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 19:21:39,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 19:21:39,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 19:21:39,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:38" (1/1) ... [2019-12-27 19:21:39,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8d95b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39, skipping insertion in model container [2019-12-27 19:21:39,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:38" (1/1) ... [2019-12-27 19:21:39,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 19:21:39,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 19:21:39,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:21:39,541 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 19:21:39,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:21:39,684 INFO L208 MainTranslator]: Completed translation [2019-12-27 19:21:39,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39 WrapperNode [2019-12-27 19:21:39,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 19:21:39,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 19:21:39,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 19:21:39,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 19:21:39,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 19:21:39,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 19:21:39,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 19:21:39,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 19:21:39,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... [2019-12-27 19:21:39,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 19:21:39,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 19:21:39,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 19:21:39,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 19:21:39,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 19:21:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 19:21:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 19:21:39,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 19:21:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 19:21:39,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 19:21:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 19:21:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 19:21:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 19:21:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 19:21:39,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 19:21:39,891 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 19:21:40,295 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 19:21:40,295 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 19:21:40,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:40 BoogieIcfgContainer [2019-12-27 19:21:40,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 19:21:40,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 19:21:40,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 19:21:40,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 19:21:40,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:21:38" (1/3) ... [2019-12-27 19:21:40,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7ff459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:40, skipping insertion in model container [2019-12-27 19:21:40,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:39" (2/3) ... [2019-12-27 19:21:40,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7ff459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:40, skipping insertion in model container [2019-12-27 19:21:40,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:40" (3/3) ... [2019-12-27 19:21:40,305 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-12-27 19:21:40,316 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 19:21:40,316 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 19:21:40,322 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 19:21:40,323 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 19:21:40,348 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,349 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,349 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,349 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,350 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,350 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,352 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,352 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,352 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,358 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,358 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,371 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,371 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,371 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:21:40,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 19:21:40,417 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:21:40,417 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:21:40,417 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:21:40,417 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:21:40,418 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:21:40,418 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:21:40,418 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:21:40,418 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:21:40,433 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 77 transitions [2019-12-27 19:21:40,435 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-27 19:21:40,484 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-27 19:21:40,485 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 19:21:40,495 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-27 19:21:40,499 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-27 19:21:40,538 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-27 19:21:40,538 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 19:21:40,539 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-27 19:21:40,545 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1428 [2019-12-27 19:21:40,546 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 19:21:41,395 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-12-27 19:21:41,588 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4771 [2019-12-27 19:21:41,588 INFO L214 etLargeBlockEncoding]: Total number of compositions: 33 [2019-12-27 19:21:41,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 50 transitions [2019-12-27 19:21:41,641 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 447 states. [2019-12-27 19:21:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-12-27 19:21:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 19:21:41,651 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:41,652 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 19:21:41,652 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:41,659 INFO L82 PathProgramCache]: Analyzing trace with hash 299443589, now seen corresponding path program 1 times [2019-12-27 19:21:41,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:41,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641865291] [2019-12-27 19:21:41,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:41,844 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641865291] [2019-12-27 19:21:41,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:41,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:41,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [997214393] [2019-12-27 19:21:41,848 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:41,858 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:41,884 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 19:21:41,884 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:41,888 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:41,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 19:21:41,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:41,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 19:21:41,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 19:21:41,905 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-12-27 19:21:41,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:41,936 INFO L93 Difference]: Finished difference Result 447 states and 1178 transitions. [2019-12-27 19:21:41,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 19:21:41,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-12-27 19:21:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:41,956 INFO L225 Difference]: With dead ends: 447 [2019-12-27 19:21:41,956 INFO L226 Difference]: Without dead ends: 390 [2019-12-27 19:21:41,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 19:21:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-12-27 19:21:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2019-12-27 19:21:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-12-27 19:21:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 1051 transitions. [2019-12-27 19:21:42,041 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 1051 transitions. Word has length 5 [2019-12-27 19:21:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:42,042 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 1051 transitions. [2019-12-27 19:21:42,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 19:21:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1051 transitions. [2019-12-27 19:21:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 19:21:42,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:42,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 19:21:42,044 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:42,044 INFO L82 PathProgramCache]: Analyzing trace with hash 692778246, now seen corresponding path program 1 times [2019-12-27 19:21:42,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:42,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158129463] [2019-12-27 19:21:42,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:42,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158129463] [2019-12-27 19:21:42,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:42,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:42,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [956068466] [2019-12-27 19:21:42,174 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:42,175 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:42,177 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 7 states and 6 transitions. [2019-12-27 19:21:42,177 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:42,181 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:42,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:42,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:42,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,183 INFO L87 Difference]: Start difference. First operand 390 states and 1051 transitions. Second operand 3 states. [2019-12-27 19:21:42,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:42,228 INFO L93 Difference]: Finished difference Result 393 states and 1016 transitions. [2019-12-27 19:21:42,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:42,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-27 19:21:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:42,232 INFO L225 Difference]: With dead ends: 393 [2019-12-27 19:21:42,233 INFO L226 Difference]: Without dead ends: 321 [2019-12-27 19:21:42,234 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 [2019-12-27 19:21:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-12-27 19:21:42,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2019-12-27 19:21:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-12-27 19:21:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 795 transitions. [2019-12-27 19:21:42,262 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 795 transitions. Word has length 6 [2019-12-27 19:21:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:42,263 INFO L462 AbstractCegarLoop]: Abstraction has 299 states and 795 transitions. [2019-12-27 19:21:42,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 795 transitions. [2019-12-27 19:21:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 19:21:42,265 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:42,265 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:42,265 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:42,266 INFO L82 PathProgramCache]: Analyzing trace with hash 545165990, now seen corresponding path program 1 times [2019-12-27 19:21:42,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:42,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709939268] [2019-12-27 19:21:42,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:42,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709939268] [2019-12-27 19:21:42,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:42,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:21:42,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1178952375] [2019-12-27 19:21:42,364 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:42,364 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:42,365 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 19:21:42,365 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:42,365 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:42,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:42,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:42,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:42,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,367 INFO L87 Difference]: Start difference. First operand 299 states and 795 transitions. Second operand 3 states. [2019-12-27 19:21:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:42,394 INFO L93 Difference]: Finished difference Result 290 states and 750 transitions. [2019-12-27 19:21:42,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:42,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 19:21:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:42,397 INFO L225 Difference]: With dead ends: 290 [2019-12-27 19:21:42,398 INFO L226 Difference]: Without dead ends: 192 [2019-12-27 19:21:42,398 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 [2019-12-27 19:21:42,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-12-27 19:21:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2019-12-27 19:21:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-12-27 19:21:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 503 transitions. [2019-12-27 19:21:42,423 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 503 transitions. Word has length 8 [2019-12-27 19:21:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:42,424 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 503 transitions. [2019-12-27 19:21:42,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 503 transitions. [2019-12-27 19:21:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 19:21:42,426 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:42,426 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:42,427 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:42,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:42,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1196250254, now seen corresponding path program 1 times [2019-12-27 19:21:42,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:42,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266997828] [2019-12-27 19:21:42,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:42,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266997828] [2019-12-27 19:21:42,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:42,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:21:42,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [687676077] [2019-12-27 19:21:42,486 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:42,487 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:42,491 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 28 transitions. [2019-12-27 19:21:42,492 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:42,494 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 19:21:42,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:42,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:42,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:42,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,496 INFO L87 Difference]: Start difference. First operand 192 states and 503 transitions. Second operand 3 states. [2019-12-27 19:21:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:42,514 INFO L93 Difference]: Finished difference Result 192 states and 493 transitions. [2019-12-27 19:21:42,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:42,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 19:21:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:42,516 INFO L225 Difference]: With dead ends: 192 [2019-12-27 19:21:42,516 INFO L226 Difference]: Without dead ends: 164 [2019-12-27 19:21:42,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-12-27 19:21:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-12-27 19:21:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-12-27 19:21:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 417 transitions. [2019-12-27 19:21:42,524 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 417 transitions. Word has length 11 [2019-12-27 19:21:42,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:42,524 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 417 transitions. [2019-12-27 19:21:42,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 417 transitions. [2019-12-27 19:21:42,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 19:21:42,526 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:21:42,526 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:21:42,526 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:21:42,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:21:42,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1811012180, now seen corresponding path program 2 times [2019-12-27 19:21:42,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:21:42,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224952721] [2019-12-27 19:21:42,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:21:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:21:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 19:21:42,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224952721] [2019-12-27 19:21:42,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:21:42,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:21:42,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [761886485] [2019-12-27 19:21:42,582 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:21:42,583 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:21:42,584 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 16 transitions. [2019-12-27 19:21:42,584 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:21:42,585 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:21:42,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:21:42,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:21:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:21:42,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,586 INFO L87 Difference]: Start difference. First operand 164 states and 417 transitions. Second operand 3 states. [2019-12-27 19:21:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:21:42,596 INFO L93 Difference]: Finished difference Result 110 states and 320 transitions. [2019-12-27 19:21:42,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:21:42,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 19:21:42,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:21:42,597 INFO L225 Difference]: With dead ends: 110 [2019-12-27 19:21:42,597 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 19:21:42,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:21:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 19:21:42,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 19:21:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 19:21:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 19:21:42,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 19:21:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:21:42,599 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 19:21:42,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:21:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 19:21:42,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 19:21:42,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:21:42 BasicIcfg [2019-12-27 19:21:42,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 19:21:42,605 INFO L168 Benchmark]: Toolchain (without parser) took 3602.36 ms. Allocated memory was 141.6 MB in the beginning and 243.8 MB in the end (delta: 102.2 MB). Free memory was 105.1 MB in the beginning and 183.4 MB in the end (delta: -78.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,606 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.65 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 104.9 MB in the beginning and 160.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 202.4 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,609 INFO L168 Benchmark]: Boogie Preprocessor took 65.96 ms. Allocated memory is still 202.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,610 INFO L168 Benchmark]: RCFGBuilder took 485.22 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 135.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 19:21:42,610 INFO L168 Benchmark]: TraceAbstraction took 2305.36 ms. Allocated memory was 202.4 MB in the beginning and 243.8 MB in the end (delta: 41.4 MB). Free memory was 134.9 MB in the beginning and 183.4 MB in the end (delta: -48.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 19:21:42,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.65 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 104.9 MB in the beginning and 160.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 202.4 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.96 ms. Allocated memory is still 202.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 485.22 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 135.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2305.36 ms. Allocated memory was 202.4 MB in the beginning and 243.8 MB in the end (delta: 41.4 MB). Free memory was 134.9 MB in the beginning and 183.4 MB in the end (delta: -48.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 70 ProgramPointsBefore, 43 ProgramPointsAfterwards, 77 TransitionsBefore, 50 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 579 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4771 CheckedPairsTotal, 33 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 2 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 89 SDslu, 79 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 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...