/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:59:17,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:59:17,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:59:17,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:59:17,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:59:17,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:59:17,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:59:17,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:59:17,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:59:17,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:59:17,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:59:17,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:59:17,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:59:17,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:59:17,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:59:17,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:59:17,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:59:17,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:59:17,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:59:17,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:59:17,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:59:17,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:59:17,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:59:17,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:59:17,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:59:17,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:59:17,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:59:17,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:59:17,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:59:17,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:59:17,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:59:17,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:59:17,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:59:17,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:59:17,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:59:17,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:59:17,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:59:17,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:59:17,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:59:17,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:59:17,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:59:17,827 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.epf [2019-12-18 18:59:17,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:59:17,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:59:17,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:59:17,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:59:17,842 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:59:17,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:59:17,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:59:17,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:59:17,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:59:17,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:59:17,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:59:17,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:59:17,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:59:17,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:59:17,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:59:17,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:59:17,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:59:17,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:59:17,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:59:17,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:59:17,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:59:17,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:59:17,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:59:17,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:59:17,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:59:17,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:59:17,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:59:17,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:59:17,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:59:18,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:59:18,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:59:18,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:59:18,160 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:59:18,160 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:59:18,161 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-18 18:59:18,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7ccb418/3985879ff0654a59b07ee02e58b8b880/FLAGa434d69c2 [2019-12-18 18:59:18,765 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:59:18,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-18 18:59:18,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7ccb418/3985879ff0654a59b07ee02e58b8b880/FLAGa434d69c2 [2019-12-18 18:59:19,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7ccb418/3985879ff0654a59b07ee02e58b8b880 [2019-12-18 18:59:19,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:59:19,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:59:19,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:59:19,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:59:19,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:59:19,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e901827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19, skipping insertion in model container [2019-12-18 18:59:19,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:59:19,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:59:19,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:59:19,721 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:59:19,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:59:19,868 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:59:19,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19 WrapperNode [2019-12-18 18:59:19,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:59:19,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:59:19,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:59:19,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:59:19,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:59:19,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:59:19,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:59:19,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:59:19,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... [2019-12-18 18:59:19,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:59:19,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:59:19,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:59:19,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:59:19,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:59:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:59:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:59:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:59:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:59:20,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:59:20,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:59:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:59:20,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:59:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:59:20,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:59:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:59:20,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:59:20,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:59:20,011 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 18:59:20,377 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:59:20,377 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:59:20,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:59:20 BoogieIcfgContainer [2019-12-18 18:59:20,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:59:20,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:59:20,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:59:20,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:59:20,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:59:19" (1/3) ... [2019-12-18 18:59:20,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4330ea19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:59:20, skipping insertion in model container [2019-12-18 18:59:20,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:59:19" (2/3) ... [2019-12-18 18:59:20,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4330ea19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:59:20, skipping insertion in model container [2019-12-18 18:59:20,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:59:20" (3/3) ... [2019-12-18 18:59:20,386 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2019-12-18 18:59:20,395 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:59:20,396 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:59:20,404 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:59:20,405 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:59:20,430 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,431 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,431 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,431 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,432 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,432 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,433 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,433 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,433 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,434 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,434 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,434 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,435 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,435 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,435 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,435 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,440 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,440 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,440 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,441 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,453 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,453 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,453 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,456 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,456 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,456 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,457 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:59:20,472 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:59:20,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:59:20,490 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:59:20,490 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:59:20,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:59:20,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:59:20,491 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:59:20,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:59:20,491 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:59:20,505 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 18:59:20,507 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:59:20,556 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:59:20,556 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:59:20,563 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:59:20,567 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:59:20,584 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:59:20,584 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:59:20,585 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:59:20,587 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:59:20,588 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:59:22,085 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 18:59:22,151 INFO L206 etLargeBlockEncoding]: Checked pairs total: 489 [2019-12-18 18:59:22,151 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2019-12-18 18:59:22,155 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:59:22,164 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:59:22,166 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:59:22,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:59:22,173 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:22,174 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:22,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:22,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1221233282, now seen corresponding path program 1 times [2019-12-18 18:59:22,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:22,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873897380] [2019-12-18 18:59:22,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:22,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873897380] [2019-12-18 18:59:22,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:22,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:59:22,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658836997] [2019-12-18 18:59:22,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:59:22,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:22,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:59:22,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:59:22,426 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:59:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:22,456 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 18:59:22,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:59:22,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:59:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:22,471 INFO L225 Difference]: With dead ends: 42 [2019-12-18 18:59:22,471 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:59:22,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:59:22,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:59:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:59:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:59:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:59:22,513 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 18:59:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:22,515 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:59:22,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:59:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:59:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:59:22,516 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:22,516 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:22,516 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:22,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:22,517 INFO L82 PathProgramCache]: Analyzing trace with hash 796473804, now seen corresponding path program 1 times [2019-12-18 18:59:22,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:22,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239533772] [2019-12-18 18:59:22,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:22,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239533772] [2019-12-18 18:59:22,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:22,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:59:22,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258276791] [2019-12-18 18:59:22,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:59:22,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:22,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:59:22,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:59:22,624 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 18:59:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:22,659 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-18 18:59:22,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:59:22,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 18:59:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:22,661 INFO L225 Difference]: With dead ends: 39 [2019-12-18 18:59:22,661 INFO L226 Difference]: Without dead ends: 31 [2019-12-18 18:59:22,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:59:22,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-18 18:59:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-18 18:59:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-18 18:59:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-18 18:59:22,672 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-18 18:59:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:22,673 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-18 18:59:22,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:59:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-18 18:59:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:59:22,674 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:22,674 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:22,675 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:22,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:22,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1474951325, now seen corresponding path program 1 times [2019-12-18 18:59:22,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:22,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687463138] [2019-12-18 18:59:22,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:22,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687463138] [2019-12-18 18:59:22,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:22,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:59:22,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936092203] [2019-12-18 18:59:22,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:59:22,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:22,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:59:22,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:59:22,782 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-18 18:59:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:22,814 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-18 18:59:22,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:59:22,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:59:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:22,815 INFO L225 Difference]: With dead ends: 32 [2019-12-18 18:59:22,816 INFO L226 Difference]: Without dead ends: 18 [2019-12-18 18:59:22,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:59:22,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-18 18:59:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-18 18:59:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-18 18:59:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-18 18:59:22,819 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-18 18:59:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:22,819 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-18 18:59:22,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:59:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-18 18:59:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:59:22,820 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:22,820 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:22,821 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:22,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1079116931, now seen corresponding path program 1 times [2019-12-18 18:59:22,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:22,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389312295] [2019-12-18 18:59:22,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:22,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389312295] [2019-12-18 18:59:22,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:22,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:59:22,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924285179] [2019-12-18 18:59:22,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 18:59:22,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:22,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 18:59:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:59:22,915 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-12-18 18:59:22,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:22,953 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-18 18:59:22,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 18:59:22,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 18:59:22,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:22,954 INFO L225 Difference]: With dead ends: 20 [2019-12-18 18:59:22,954 INFO L226 Difference]: Without dead ends: 16 [2019-12-18 18:59:22,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 18:59:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-18 18:59:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-18 18:59:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-18 18:59:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-18 18:59:22,958 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-18 18:59:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:22,958 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-18 18:59:22,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 18:59:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-18 18:59:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:59:22,959 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:22,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:22,959 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:22,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1076556641, now seen corresponding path program 2 times [2019-12-18 18:59:22,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:22,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958455862] [2019-12-18 18:59:22,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:23,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958455862] [2019-12-18 18:59:23,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:23,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 18:59:23,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534686593] [2019-12-18 18:59:23,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 18:59:23,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:23,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 18:59:23,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 18:59:23,049 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 6 states. [2019-12-18 18:59:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:23,105 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-12-18 18:59:23,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 18:59:23,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 18:59:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:23,106 INFO L225 Difference]: With dead ends: 16 [2019-12-18 18:59:23,106 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 18:59:23,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 18:59:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 18:59:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 18:59:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 18:59:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 18:59:23,109 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-18 18:59:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:23,110 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 18:59:23,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 18:59:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 18:59:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:59:23,110 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:59:23,111 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:59:23,111 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:59:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:59:23,111 INFO L82 PathProgramCache]: Analyzing trace with hash 986560406, now seen corresponding path program 1 times [2019-12-18 18:59:23,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:59:23,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83941285] [2019-12-18 18:59:23,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:59:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:59:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:59:23,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83941285] [2019-12-18 18:59:23,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:59:23,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:59:23,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659680722] [2019-12-18 18:59:23,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:59:23,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:59:23,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:59:23,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:59:23,140 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2019-12-18 18:59:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:59:23,145 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 18:59:23,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:59:23,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 18:59:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:59:23,146 INFO L225 Difference]: With dead ends: 13 [2019-12-18 18:59:23,146 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:59:23,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:59:23,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:59:23,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:59:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:59:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:59:23,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:59:23,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:59:23,148 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:59:23,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:59:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:59:23,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:59:23,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:59:23 BasicIcfg [2019-12-18 18:59:23,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:59:23,154 INFO L168 Benchmark]: Toolchain (without parser) took 4030.37 ms. Allocated memory was 145.2 MB in the beginning and 247.5 MB in the end (delta: 102.2 MB). Free memory was 101.3 MB in the beginning and 123.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,155 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.64 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.1 MB in the beginning and 157.1 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.92 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,158 INFO L168 Benchmark]: Boogie Preprocessor took 26.85 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,159 INFO L168 Benchmark]: RCFGBuilder took 432.29 ms. Allocated memory is still 201.9 MB. Free memory was 153.2 MB in the beginning and 132.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,159 INFO L168 Benchmark]: TraceAbstraction took 2772.61 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.7 MB in the beginning and 123.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2019-12-18 18:59:23,164 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.64 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.1 MB in the beginning and 157.1 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.92 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.85 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.29 ms. Allocated memory is still 201.9 MB. Free memory was 153.2 MB in the beginning and 132.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2772.61 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.7 MB in the beginning and 123.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 210 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 489 CheckedPairsTotal, 43 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 45 SDslu, 47 SDs, 0 SdLazy, 49 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...