/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:17:32,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:17:32,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:17:32,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:17:32,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:17:32,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:17:32,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:17:32,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:17:32,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:17:32,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:17:32,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:17:32,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:17:32,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:17:32,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:17:32,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:17:32,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:17:32,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:17:32,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:17:32,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:17:32,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:17:32,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:17:32,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:17:32,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:17:32,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:17:32,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:17:32,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:17:32,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:17:32,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:17:32,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:17:32,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:17:32,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:17:32,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:17:32,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:17:32,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:17:32,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:17:32,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:17:32,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:17:32,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:17:32,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:17:32,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:17:32,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:17:32,777 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-SemanticLbe-MCR.epf [2019-12-27 18:17:32,792 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:17:32,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:17:32,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:17:32,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:17:32,793 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:17:32,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:17:32,794 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:17:32,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:17:32,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:17:32,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:17:32,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:17:32,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:17:32,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:17:32,795 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:17:32,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:17:32,795 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:17:32,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:17:32,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:17:32,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:17:32,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:17:32,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:17:32,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:17:32,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:17:32,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:17:32,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:17:32,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:17:32,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:17:32,798 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:17:32,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:17:32,798 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:17:32,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:17:33,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:17:33,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:17:33,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:17:33,099 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:17:33,100 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:17:33,102 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-27 18:17:33,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b786c2db/56a5daa801734cb6b7e66dae4a9397f4/FLAG6271b4327 [2019-12-27 18:17:33,739 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:17:33,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-27 18:17:33,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b786c2db/56a5daa801734cb6b7e66dae4a9397f4/FLAG6271b4327 [2019-12-27 18:17:34,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b786c2db/56a5daa801734cb6b7e66dae4a9397f4 [2019-12-27 18:17:34,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:17:34,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:17:34,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:17:34,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:17:34,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:17:34,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6cab65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34, skipping insertion in model container [2019-12-27 18:17:34,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:17:34,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:17:34,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:17:34,585 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:17:34,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:17:34,733 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:17:34,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34 WrapperNode [2019-12-27 18:17:34,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:17:34,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:17:34,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:17:34,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:17:34,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:17:34,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:17:34,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:17:34,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:17:34,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (1/1) ... [2019-12-27 18:17:34,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:17:34,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:17:34,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:17:34,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:17:34,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (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 18:17:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:17:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:17:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:17:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:17:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:17:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:17:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:17:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:17:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:17:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:17:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:17:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:17:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:17:34,887 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 18:17:35,296 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:17:35,297 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:17:35,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:17:35 BoogieIcfgContainer [2019-12-27 18:17:35,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:17:35,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:17:35,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:17:35,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:17:35,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:17:34" (1/3) ... [2019-12-27 18:17:35,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714aff79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:17:35, skipping insertion in model container [2019-12-27 18:17:35,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:17:34" (2/3) ... [2019-12-27 18:17:35,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714aff79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:17:35, skipping insertion in model container [2019-12-27 18:17:35,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:17:35" (3/3) ... [2019-12-27 18:17:35,308 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2019-12-27 18:17:35,317 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:17:35,318 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:17:35,326 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:17:35,327 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:17:35,353 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,353 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,354 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,354 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,355 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,355 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,356 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,356 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,356 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,357 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,358 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,358 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,358 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,358 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,363 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,363 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,364 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,364 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,375 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,376 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,376 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,376 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,379 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,379 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,380 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,380 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:17:35,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:17:35,417 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:17:35,417 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:17:35,417 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:17:35,417 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:17:35,417 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:17:35,417 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:17:35,418 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:17:35,418 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:17:35,431 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:17:35,433 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:17:35,477 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:17:35,477 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:17:35,487 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:17:35,491 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:17:35,521 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:17:35,522 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:17:35,523 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:17:35,525 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:17:35,526 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:17:36,915 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 18:17:37,085 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 18:17:37,085 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 18:17:37,089 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:17:37,099 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:17:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:17:37,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:17:37,109 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:17:37,110 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:17:37,110 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:17:37,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:17:37,117 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-27 18:17:37,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:17:37,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619421742] [2019-12-27 18:17:37,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:17:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:17:37,371 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 18:17:37,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619421742] [2019-12-27 18:17:37,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:17:37,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:17:37,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1288331840] [2019-12-27 18:17:37,376 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:17:37,385 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:17:37,403 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:17:37,404 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:17:37,409 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:17:37,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:17:37,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:17:37,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:17:37,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:17:37,429 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:17:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:17:37,458 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 18:17:37,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:17:37,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:17:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:17:37,486 INFO L225 Difference]: With dead ends: 44 [2019-12-27 18:17:37,487 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:17:37,489 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 [2019-12-27 18:17:37,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:17:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:17:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:17:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:17:37,539 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:17:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:17:37,541 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:17:37,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:17:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:17:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:17:37,543 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:17:37,544 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:17:37,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:17:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:17:37,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-27 18:17:37,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:17:37,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745134494] [2019-12-27 18:17:37,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:17:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:17:37,659 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 18:17:37,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745134494] [2019-12-27 18:17:37,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:17:37,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:17:37,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [356410698] [2019-12-27 18:17:37,660 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:17:37,662 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:17:37,666 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:17:37,666 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:17:37,667 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:17:37,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:17:37,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:17:37,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:17:37,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:17:37,670 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 18:17:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:17:37,680 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 18:17:37,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:17:37,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:17:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:17:37,682 INFO L225 Difference]: With dead ends: 34 [2019-12-27 18:17:37,682 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:17:37,684 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 [2019-12-27 18:17:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:17:37,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:17:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:17:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:17:37,692 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 18:17:37,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:17:37,692 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:17:37,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:17:37,692 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:17:37,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:17:37,693 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:17:37,693 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:17:37,694 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:17:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:17:37,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-27 18:17:37,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:17:37,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245004157] [2019-12-27 18:17:37,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:17:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:17:37,776 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 18:17:37,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245004157] [2019-12-27 18:17:37,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:17:37,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:17:37,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1802607175] [2019-12-27 18:17:37,778 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:17:37,780 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:17:37,786 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:17:37,786 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:17:37,787 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:17:37,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:17:37,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:17:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:17:37,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:17:37,788 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 18:17:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:17:37,801 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:17:37,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:17:37,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:17:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:17:37,803 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:17:37,803 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 18:17:37,803 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 18:17:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 18:17:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 18:17:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 18:17:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 18:17:37,807 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 18:17:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:17:37,808 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 18:17:37,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:17:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 18:17:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:17:37,809 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:17:37,809 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:17:37,809 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:17:37,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:17:37,809 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-27 18:17:37,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:17:37,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163790576] [2019-12-27 18:17:37,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:17:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:17:37,859 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 18:17:37,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163790576] [2019-12-27 18:17:37,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:17:37,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:17:37,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2037391990] [2019-12-27 18:17:37,860 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:17:37,862 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:17:37,864 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:17:37,865 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:17:37,865 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:17:37,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:17:37,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:17:37,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:17:37,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:17:37,867 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 18:17:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:17:37,893 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 18:17:37,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:17:37,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:17:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:17:37,894 INFO L225 Difference]: With dead ends: 25 [2019-12-27 18:17:37,895 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:17:37,895 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:17:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:17:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:17:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:17:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:17:37,899 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 18:17:37,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:17:37,899 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:17:37,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:17:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:17:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:17:37,900 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:17:37,900 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:17:37,900 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:17:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:17:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-27 18:17:37,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:17:37,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082367701] [2019-12-27 18:17:37,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:17:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:17:37,943 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 18:17:37,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082367701] [2019-12-27 18:17:37,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:17:37,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:17:37,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [936126799] [2019-12-27 18:17:37,944 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:17:37,946 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:17:37,947 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:17:37,948 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:17:37,983 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:17:37,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:17:37,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:17:37,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:17:37,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:17:37,985 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 18:17:38,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:17:38,004 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:17:38,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:17:38,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:17:38,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:17:38,005 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:17:38,005 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:17:38,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:17:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:17:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:17:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:17:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:17:38,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:17:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:17:38,006 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:17:38,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:17:38,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:17:38,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:17:38,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:17:38 BasicIcfg [2019-12-27 18:17:38,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:17:38,013 INFO L168 Benchmark]: Toolchain (without parser) took 3993.70 ms. Allocated memory was 136.8 MB in the beginning and 250.1 MB in the end (delta: 113.2 MB). Free memory was 99.8 MB in the beginning and 143.1 MB in the end (delta: -43.3 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,014 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:17:38,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.71 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 159.0 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.22 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,016 INFO L168 Benchmark]: Boogie Preprocessor took 27.04 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 155.0 MB in the end (delta: 992.3 kB). Peak memory consumption was 992.3 kB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,017 INFO L168 Benchmark]: RCFGBuilder took 484.15 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 134.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,018 INFO L168 Benchmark]: TraceAbstraction took 2711.31 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.7 MB in the beginning and 143.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:17:38,022 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.71 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 159.0 MB in the end (delta: -59.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.22 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.04 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 155.0 MB in the end (delta: 992.3 kB). Peak memory consumption was 992.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 484.15 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 134.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2711.31 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.7 MB in the beginning and 143.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 479 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 19 SDslu, 45 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 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...