/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:02:11,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:02:11,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:02:11,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:02:11,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:02:11,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:02:11,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:02:11,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:02:11,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:02:11,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:02:11,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:02:11,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:02:11,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:02:11,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:02:11,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:02:11,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:02:11,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:02:11,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:02:11,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:02:11,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:02:11,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:02:11,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:02:11,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:02:11,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:02:11,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:02:11,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:02:11,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:02:11,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:02:11,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:02:11,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:02:11,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:02:11,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:02:11,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:02:11,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:02:11,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:02:11,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:02:11,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:02:11,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:02:11,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:02:11,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:02:11,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:02:11,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:02:11,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:02:11,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:02:11,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:02:11,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:02:11,752 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:02:11,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:02:11,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:02:11,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:02:11,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:02:11,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:02:11,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:02:11,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:02:11,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:02:11,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:02:11,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:02:11,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:02:11,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:02:11,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:02:11,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:02:11,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:02:11,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:02:11,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:02:11,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:02:11,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:02:11,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:02:11,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:02:11,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:02:11,756 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:02:11,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:02:11,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:02:11,757 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:02:12,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:02:12,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:02:12,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:02:12,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:02:12,109 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:02:12,110 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-06 01:02:12,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b108512fa/d03192abb3824933898acf96404f2a9c/FLAGb34467239 [2020-10-06 01:02:12,753 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:02:12,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-06 01:02:12,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b108512fa/d03192abb3824933898acf96404f2a9c/FLAGb34467239 [2020-10-06 01:02:13,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b108512fa/d03192abb3824933898acf96404f2a9c [2020-10-06 01:02:13,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:02:13,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:02:13,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:02:13,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:02:13,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:02:13,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0159d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13, skipping insertion in model container [2020-10-06 01:02:13,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:02:13,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:02:13,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:02:13,748 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:02:13,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:02:13,889 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:02:13,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13 WrapperNode [2020-10-06 01:02:13,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:02:13,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:02:13,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:02:13,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:02:13,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:02:13,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:02:13,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:02:13,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:02:13,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (1/1) ... [2020-10-06 01:02:13,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:02:13,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:02:13,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:02:13,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:02:13,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (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 [2020-10-06 01:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:02:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:02:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:02:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:02:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:02:14,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:02:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:02:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:02:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:02:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:02:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:02:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:02:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:02:14,052 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:02:14,388 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:02:14,389 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:02:14,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:02:14 BoogieIcfgContainer [2020-10-06 01:02:14,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:02:14,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:02:14,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:02:14,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:02:14,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:02:13" (1/3) ... [2020-10-06 01:02:14,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24e24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:02:14, skipping insertion in model container [2020-10-06 01:02:14,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:02:13" (2/3) ... [2020-10-06 01:02:14,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24e24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:02:14, skipping insertion in model container [2020-10-06 01:02:14,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:02:14" (3/3) ... [2020-10-06 01:02:14,403 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2020-10-06 01:02:14,417 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:02:14,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:02:14,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:02:14,428 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:02:14,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,462 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:02:14,532 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:02:14,554 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:02:14,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:02:14,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:02:14,555 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:02:14,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:02:14,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:02:14,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:02:14,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:02:14,571 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-06 01:02:14,574 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:02:14,622 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:02:14,623 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:02:14,629 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:02:14,632 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:02:14,655 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:02:14,655 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:02:14,656 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:02:14,659 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-10-06 01:02:14,660 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:02:16,018 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-10-06 01:02:16,018 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-10-06 01:02:16,022 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-06 01:02:16,045 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-06 01:02:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-06 01:02:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:02:16,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:16,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:16,058 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:16,065 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-06 01:02:16,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:16,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877004392] [2020-10-06 01:02:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:16,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877004392] [2020-10-06 01:02:16,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:16,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:02:16,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1474236921] [2020-10-06 01:02:16,311 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:16,314 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:16,330 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:02:16,331 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:16,335 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:02:16,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:02:16,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:16,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:02:16,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:02:16,355 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-06 01:02:16,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:16,389 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-06 01:02:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:02:16,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:02:16,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:16,406 INFO L225 Difference]: With dead ends: 222 [2020-10-06 01:02:16,406 INFO L226 Difference]: Without dead ends: 174 [2020-10-06 01:02:16,408 INFO L675 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 [2020-10-06 01:02:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-06 01:02:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-06 01:02:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-06 01:02:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-06 01:02:16,473 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-06 01:02:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:16,474 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-06 01:02:16,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:02:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-06 01:02:16,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:02:16,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:16,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:16,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:02:16,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:16,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:16,477 INFO L82 PathProgramCache]: Analyzing trace with hash -273417231, now seen corresponding path program 1 times [2020-10-06 01:02:16,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:16,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768926642] [2020-10-06 01:02:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:16,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768926642] [2020-10-06 01:02:16,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:16,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:02:16,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1887195543] [2020-10-06 01:02:16,562 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:16,563 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:16,566 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-06 01:02:16,566 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:16,613 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:02:16,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:02:16,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:16,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:02:16,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:02:16,616 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-06 01:02:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:16,643 INFO L93 Difference]: Finished difference Result 240 states and 615 transitions. [2020-10-06 01:02:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:02:16,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:02:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:16,645 INFO L225 Difference]: With dead ends: 240 [2020-10-06 01:02:16,645 INFO L226 Difference]: Without dead ends: 138 [2020-10-06 01:02:16,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:02:16,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-06 01:02:16,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-06 01:02:16,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-06 01:02:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 351 transitions. [2020-10-06 01:02:16,661 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 351 transitions. Word has length 9 [2020-10-06 01:02:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:16,662 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 351 transitions. [2020-10-06 01:02:16,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:02:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-10-06 01:02:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:02:16,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:16,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:16,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:02:16,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1925064459, now seen corresponding path program 1 times [2020-10-06 01:02:16,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:16,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010779151] [2020-10-06 01:02:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:16,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010779151] [2020-10-06 01:02:16,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:16,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:02:16,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [776590390] [2020-10-06 01:02:16,724 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:16,725 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:16,727 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-10-06 01:02:16,727 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:16,738 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:02:16,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:02:16,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:16,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:02:16,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:02:16,739 INFO L87 Difference]: Start difference. First operand 138 states and 351 transitions. Second operand 3 states. [2020-10-06 01:02:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:16,745 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-10-06 01:02:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:02:16,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 01:02:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:16,747 INFO L225 Difference]: With dead ends: 132 [2020-10-06 01:02:16,748 INFO L226 Difference]: Without dead ends: 132 [2020-10-06 01:02:16,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:02:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-06 01:02:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-06 01:02:16,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-06 01:02:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 332 transitions. [2020-10-06 01:02:16,760 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 332 transitions. Word has length 10 [2020-10-06 01:02:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:16,761 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 332 transitions. [2020-10-06 01:02:16,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:02:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-10-06 01:02:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:02:16,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:16,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:16,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:02:16,763 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:16,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash 452543204, now seen corresponding path program 1 times [2020-10-06 01:02:16,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:16,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472148777] [2020-10-06 01:02:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:16,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:16,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472148777] [2020-10-06 01:02:16,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:16,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:02:16,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1787550321] [2020-10-06 01:02:16,861 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:16,862 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:16,864 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 31 transitions. [2020-10-06 01:02:16,865 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:16,913 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:02:16,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:02:16,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:16,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:02:16,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:02:16,915 INFO L87 Difference]: Start difference. First operand 132 states and 332 transitions. Second operand 4 states. [2020-10-06 01:02:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:16,935 INFO L93 Difference]: Finished difference Result 144 states and 346 transitions. [2020-10-06 01:02:16,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:02:16,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:02:16,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:16,936 INFO L225 Difference]: With dead ends: 144 [2020-10-06 01:02:16,936 INFO L226 Difference]: Without dead ends: 60 [2020-10-06 01:02:16,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:02:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-06 01:02:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-06 01:02:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-06 01:02:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-06 01:02:16,943 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 11 [2020-10-06 01:02:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:16,944 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-06 01:02:16,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:02:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-06 01:02:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:02:16,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:16,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:16,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:02:16,946 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:16,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:16,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 1 times [2020-10-06 01:02:16,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:16,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992615594] [2020-10-06 01:02:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:17,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992615594] [2020-10-06 01:02:17,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:17,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:02:17,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [393745186] [2020-10-06 01:02:17,021 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:17,022 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:17,024 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-10-06 01:02:17,024 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:17,051 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:02:17,078 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:02:17,095 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:02:17,112 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:02:17,117 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2315#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-06 01:02:17,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:02:17,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:17,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:02:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:02:17,119 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 5 states. [2020-10-06 01:02:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:17,175 INFO L93 Difference]: Finished difference Result 59 states and 111 transitions. [2020-10-06 01:02:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:02:17,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 01:02:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:17,176 INFO L225 Difference]: With dead ends: 59 [2020-10-06 01:02:17,176 INFO L226 Difference]: Without dead ends: 38 [2020-10-06 01:02:17,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:02:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-06 01:02:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-06 01:02:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-06 01:02:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-06 01:02:17,181 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 12 [2020-10-06 01:02:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:17,181 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-06 01:02:17,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:02:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-06 01:02:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:02:17,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:17,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:17,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:02:17,183 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:17,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-06 01:02:17,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:17,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66486910] [2020-10-06 01:02:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:17,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66486910] [2020-10-06 01:02:17,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:17,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:02:17,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808474889] [2020-10-06 01:02:17,259 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:17,261 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:17,263 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-06 01:02:17,263 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:17,287 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:02:17,357 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [2461#(not (= 3 ~__unbuffered_cnt~0)), 2462#(not (= ~__unbuffered_cnt~0 2)), 2463#(not (= ~__unbuffered_cnt~0 1))] [2020-10-06 01:02:17,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-06 01:02:17,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:17,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-06 01:02:17,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-06 01:02:17,358 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 9 states. [2020-10-06 01:02:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:17,447 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-06 01:02:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:02:17,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-10-06 01:02:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:17,448 INFO L225 Difference]: With dead ends: 35 [2020-10-06 01:02:17,448 INFO L226 Difference]: Without dead ends: 29 [2020-10-06 01:02:17,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-06 01:02:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-06 01:02:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-06 01:02:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-06 01:02:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-06 01:02:17,453 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-06 01:02:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:17,454 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-06 01:02:17,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-06 01:02:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-06 01:02:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:02:17,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:02:17,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:02:17,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:02:17,458 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:02:17,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:02:17,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-06 01:02:17,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:02:17,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979910708] [2020-10-06 01:02:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:02:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:02:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:02:17,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979910708] [2020-10-06 01:02:17,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:02:17,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:02:17,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [325744907] [2020-10-06 01:02:17,552 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:02:17,555 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:02:17,559 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 28 transitions. [2020-10-06 01:02:17,559 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:02:17,571 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:02:17,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:02:17,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:02:17,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:02:17,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:02:17,573 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-06 01:02:17,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:02:17,579 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-06 01:02:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:02:17,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-06 01:02:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:02:17,580 INFO L225 Difference]: With dead ends: 28 [2020-10-06 01:02:17,580 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:02:17,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:02:17,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:02:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:02:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:02:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:02:17,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-06 01:02:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:02:17,583 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:02:17,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:02:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:02:17,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:02:17,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:02:17,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:02:17 BasicIcfg [2020-10-06 01:02:17,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:02:17,596 INFO L168 Benchmark]: Toolchain (without parser) took 4461.50 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.7 MB in the beginning and 188.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,601 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.28 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 157.7 MB in the end (delta: -56.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.47 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,605 INFO L168 Benchmark]: Boogie Preprocessor took 27.61 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,606 INFO L168 Benchmark]: RCFGBuilder took 426.55 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 131.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:02:17,609 INFO L168 Benchmark]: TraceAbstraction took 3197.63 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 131.6 MB in the beginning and 188.5 MB in the end (delta: -57.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:02:17,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.28 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 157.7 MB in the end (delta: -56.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.47 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.61 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.55 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 131.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3197.63 ms. Allocated memory was 200.8 MB in the beginning and 249.0 MB in the end (delta: 48.2 MB). Free memory was 131.6 MB in the beginning and 188.5 MB in the end (delta: -57.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 606 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 113 SDtfs, 88 SDslu, 126 SDs, 0 SdLazy, 101 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 2391 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...