/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:34:17,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:34:17,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:34:18,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:34:18,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:34:18,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:34:18,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:34:18,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:34:18,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:34:18,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:34:18,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:34:18,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:34:18,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:34:18,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:34:18,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:34:18,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:34:18,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:34:18,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:34:18,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:34:18,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:34:18,051 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-PN-NoLbe.epf [2021-03-11 02:34:18,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:34:18,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:34:18,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:34:18,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:34:18,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:34:18,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:34:18,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:34:18,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:34:18,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:34:18,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:34:18,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:34:18,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:34:18,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:34:18,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:34:18,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:34:18,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:34:18,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:34:18,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:34:18,372 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:34:18,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-03-11 02:34:18,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf85450b/de3845ea20764a23ade27fd258980f3d/FLAGe991998fc [2021-03-11 02:34:18,867 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:34:18,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-03-11 02:34:18,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf85450b/de3845ea20764a23ade27fd258980f3d/FLAGe991998fc [2021-03-11 02:34:19,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf85450b/de3845ea20764a23ade27fd258980f3d [2021-03-11 02:34:19,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:34:19,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:34:19,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:34:19,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:34:19,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:34:19,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752965b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19, skipping insertion in model container [2021-03-11 02:34:19,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:34:19,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:34:19,316 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-03-11 02:34:19,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:34:19,466 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:34:19,474 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-03-11 02:34:19,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:34:19,537 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:34:19,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19 WrapperNode [2021-03-11 02:34:19,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:34:19,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:34:19,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:34:19,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:34:19,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:34:19,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:34:19,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:34:19,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:34:19,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (1/1) ... [2021-03-11 02:34:19,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:34:19,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:34:19,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:34:19,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:34:19,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (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 [2021-03-11 02:34:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:34:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:34:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:34:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:34:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:34:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:34:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:34:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:34:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:34:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:34:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:34:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:34:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:34:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:34:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:34:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:34:19,675 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:34:19,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:34:19,999 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:34:20,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:34:20 BoogieIcfgContainer [2021-03-11 02:34:20,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:34:20,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:34:20,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:34:20,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:34:20,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:34:19" (1/3) ... [2021-03-11 02:34:20,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2388db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:34:20, skipping insertion in model container [2021-03-11 02:34:20,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:34:19" (2/3) ... [2021-03-11 02:34:20,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2388db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:34:20, skipping insertion in model container [2021-03-11 02:34:20,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:34:20" (3/3) ... [2021-03-11 02:34:20,007 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-03-11 02:34:20,011 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:34:20,014 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:34:20,015 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,045 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,049 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,052 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,052 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,055 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,056 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,056 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,056 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:34:20,060 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:34:20,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:34:20,086 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:34:20,086 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:34:20,086 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:34:20,086 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:34:20,086 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:34:20,086 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:34:20,087 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:34:20,087 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:34:20,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-11 02:34:20,118 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-11 02:34:20,119 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:34:20,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-11 02:34:20,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-11 02:34:20,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-11 02:34:20,136 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-03-11 02:34:20,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:34:20,137 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:20,137 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:20,137 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:20,141 INFO L82 PathProgramCache]: Analyzing trace with hash 117794534, now seen corresponding path program 1 times [2021-03-11 02:34:20,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:20,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304046207] [2021-03-11 02:34:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:20,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:20,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:20,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:20,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:20,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:20,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304046207] [2021-03-11 02:34:20,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:20,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:34:20,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16756673] [2021-03-11 02:34:20,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:34:20,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:20,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:34:20,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:34:20,378 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 86 [2021-03-11 02:34:20,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:20,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 86 [2021-03-11 02:34:20,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:20,521 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2021-03-11 02:34:20,521 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:34:20,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 93. Up to 7 conditions per place. [2021-03-11 02:34:20,528 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 6 selfloop transitions, 2 changer transitions 11/77 dead transitions. [2021-03-11 02:34:20,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 202 flow [2021-03-11 02:34:20,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:34:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:34:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 688 transitions. [2021-03-11 02:34:20,538 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-11 02:34:20,539 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:20,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.44444444444444) internal successors, (688), 9 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,552 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,554 INFO L185 Difference]: Start difference. First operand has 80 places, 68 transitions, 148 flow. Second operand 9 states and 688 transitions. [2021-03-11 02:34:20,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 202 flow [2021-03-11 02:34:20,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 77 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:34:20,559 INFO L241 Difference]: Finished difference. Result has 91 places, 66 transitions, 160 flow [2021-03-11 02:34:20,560 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=160, PETRI_PLACES=91, PETRI_TRANSITIONS=66} [2021-03-11 02:34:20,560 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2021-03-11 02:34:20,561 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 66 transitions, 160 flow [2021-03-11 02:34:20,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,561 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:20,561 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:20,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:34:20,561 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:20,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash -37859065, now seen corresponding path program 1 times [2021-03-11 02:34:20,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:20,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374767672] [2021-03-11 02:34:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:20,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:20,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:20,664 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:20,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:20,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:20,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:20,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:20,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374767672] [2021-03-11 02:34:20,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:20,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:34:20,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000127936] [2021-03-11 02:34:20,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:34:20,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:20,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:34:20,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:34:20,711 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 86 [2021-03-11 02:34:20,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 66 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:20,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 86 [2021-03-11 02:34:20,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:20,885 INFO L129 PetriNetUnfolder]: 82/250 cut-off events. [2021-03-11 02:34:20,885 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-03-11 02:34:20,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 250 events. 82/250 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 987 event pairs, 10 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 465. Up to 78 conditions per place. [2021-03-11 02:34:20,891 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 10 selfloop transitions, 3 changer transitions 25/94 dead transitions. [2021-03-11 02:34:20,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 310 flow [2021-03-11 02:34:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:34:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:34:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 688 transitions. [2021-03-11 02:34:20,893 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-11 02:34:20,893 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:20,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 688 transitions. [2021-03-11 02:34:20,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.44444444444444) internal successors, (688), 9 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,898 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,898 INFO L185 Difference]: Start difference. First operand has 91 places, 66 transitions, 160 flow. Second operand 9 states and 688 transitions. [2021-03-11 02:34:20,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 310 flow [2021-03-11 02:34:20,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 94 transitions, 278 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:34:20,907 INFO L241 Difference]: Finished difference. Result has 91 places, 68 transitions, 187 flow [2021-03-11 02:34:20,907 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=187, PETRI_PLACES=91, PETRI_TRANSITIONS=68} [2021-03-11 02:34:20,907 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2021-03-11 02:34:20,907 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 68 transitions, 187 flow [2021-03-11 02:34:20,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:20,908 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:20,909 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:20,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:34:20,909 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:20,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1307440456, now seen corresponding path program 1 times [2021-03-11 02:34:20,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:20,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906280329] [2021-03-11 02:34:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:20,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:20,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:20,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:20,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:20,994 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:34:20,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:34:21,008 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:21,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:21,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:21,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906280329] [2021-03-11 02:34:21,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:21,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:34:21,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300404504] [2021-03-11 02:34:21,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:34:21,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:21,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:34:21,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:34:21,065 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2021-03-11 02:34:21,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 68 transitions, 187 flow. Second operand has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:21,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2021-03-11 02:34:21,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:21,405 INFO L129 PetriNetUnfolder]: 289/769 cut-off events. [2021-03-11 02:34:21,405 INFO L130 PetriNetUnfolder]: For 1053/1573 co-relation queries the response was YES. [2021-03-11 02:34:21,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 769 events. 289/769 cut-off events. For 1053/1573 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4594 event pairs, 13 based on Foata normal form. 31/773 useless extension candidates. Maximal degree in co-relation 2025. Up to 170 conditions per place. [2021-03-11 02:34:21,411 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 21 selfloop transitions, 11 changer transitions 67/148 dead transitions. [2021-03-11 02:34:21,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 148 transitions, 798 flow [2021-03-11 02:34:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 02:34:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 02:34:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1202 transitions. [2021-03-11 02:34:21,414 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8221614227086184 [2021-03-11 02:34:21,414 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1202 transitions. [2021-03-11 02:34:21,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1202 transitions. [2021-03-11 02:34:21,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:21,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1202 transitions. [2021-03-11 02:34:21,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.70588235294117) internal successors, (1202), 17 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,420 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,420 INFO L185 Difference]: Start difference. First operand has 91 places, 68 transitions, 187 flow. Second operand 17 states and 1202 transitions. [2021-03-11 02:34:21,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 148 transitions, 798 flow [2021-03-11 02:34:21,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 148 transitions, 763 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-11 02:34:21,428 INFO L241 Difference]: Finished difference. Result has 112 places, 71 transitions, 281 flow [2021-03-11 02:34:21,428 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=281, PETRI_PLACES=112, PETRI_TRANSITIONS=71} [2021-03-11 02:34:21,428 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 32 predicate places. [2021-03-11 02:34:21,428 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 71 transitions, 281 flow [2021-03-11 02:34:21,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:21,429 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:21,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:34:21,429 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:21,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1340068423, now seen corresponding path program 1 times [2021-03-11 02:34:21,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:21,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000502269] [2021-03-11 02:34:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:21,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:21,499 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:21,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:21,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:21,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000502269] [2021-03-11 02:34:21,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:21,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:34:21,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308103302] [2021-03-11 02:34:21,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:34:21,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:21,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:34:21,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:34:21,531 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 86 [2021-03-11 02:34:21,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 71 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:21,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 86 [2021-03-11 02:34:21,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:21,632 INFO L129 PetriNetUnfolder]: 55/260 cut-off events. [2021-03-11 02:34:21,633 INFO L130 PetriNetUnfolder]: For 1427/1480 co-relation queries the response was YES. [2021-03-11 02:34:21,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 260 events. 55/260 cut-off events. For 1427/1480 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1234 event pairs, 26 based on Foata normal form. 10/263 useless extension candidates. Maximal degree in co-relation 933. Up to 64 conditions per place. [2021-03-11 02:34:21,635 INFO L132 encePairwiseOnDemand]: 80/86 looper letters, 6 selfloop transitions, 3 changer transitions 13/84 dead transitions. [2021-03-11 02:34:21,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 84 transitions, 434 flow [2021-03-11 02:34:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:34:21,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:34:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 686 transitions. [2021-03-11 02:34:21,637 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8863049095607235 [2021-03-11 02:34:21,637 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 686 transitions. [2021-03-11 02:34:21,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 686 transitions. [2021-03-11 02:34:21,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:21,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 686 transitions. [2021-03-11 02:34:21,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,641 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,641 INFO L185 Difference]: Start difference. First operand has 112 places, 71 transitions, 281 flow. Second operand 9 states and 686 transitions. [2021-03-11 02:34:21,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 84 transitions, 434 flow [2021-03-11 02:34:21,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 84 transitions, 354 flow, removed 30 selfloop flow, removed 13 redundant places. [2021-03-11 02:34:21,647 INFO L241 Difference]: Finished difference. Result has 102 places, 71 transitions, 261 flow [2021-03-11 02:34:21,648 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=261, PETRI_PLACES=102, PETRI_TRANSITIONS=71} [2021-03-11 02:34:21,648 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 22 predicate places. [2021-03-11 02:34:21,648 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 71 transitions, 261 flow [2021-03-11 02:34:21,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,648 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:21,648 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:21,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:34:21,649 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:21,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:21,649 INFO L82 PathProgramCache]: Analyzing trace with hash -331441590, now seen corresponding path program 1 times [2021-03-11 02:34:21,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:21,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856429035] [2021-03-11 02:34:21,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:21,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:21,709 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:34:21,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:34:21,718 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:21,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:21,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:21,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856429035] [2021-03-11 02:34:21,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:21,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:34:21,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32982565] [2021-03-11 02:34:21,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:34:21,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:21,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:34:21,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:34:21,757 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2021-03-11 02:34:21,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 71 transitions, 261 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:21,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2021-03-11 02:34:21,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:21,878 INFO L129 PetriNetUnfolder]: 55/290 cut-off events. [2021-03-11 02:34:21,879 INFO L130 PetriNetUnfolder]: For 1040/1169 co-relation queries the response was YES. [2021-03-11 02:34:21,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 290 events. 55/290 cut-off events. For 1040/1169 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1416 event pairs, 16 based on Foata normal form. 14/300 useless extension candidates. Maximal degree in co-relation 908. Up to 66 conditions per place. [2021-03-11 02:34:21,881 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 18 selfloop transitions, 10 changer transitions 16/95 dead transitions. [2021-03-11 02:34:21,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 95 transitions, 578 flow [2021-03-11 02:34:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:34:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:34:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 713 transitions. [2021-03-11 02:34:21,883 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2021-03-11 02:34:21,883 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 713 transitions. [2021-03-11 02:34:21,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 713 transitions. [2021-03-11 02:34:21,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:21,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 713 transitions. [2021-03-11 02:34:21,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,887 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,888 INFO L185 Difference]: Start difference. First operand has 102 places, 71 transitions, 261 flow. Second operand 10 states and 713 transitions. [2021-03-11 02:34:21,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 95 transitions, 578 flow [2021-03-11 02:34:21,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 512 flow, removed 29 selfloop flow, removed 8 redundant places. [2021-03-11 02:34:21,891 INFO L241 Difference]: Finished difference. Result has 105 places, 74 transitions, 298 flow [2021-03-11 02:34:21,891 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=298, PETRI_PLACES=105, PETRI_TRANSITIONS=74} [2021-03-11 02:34:21,891 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 25 predicate places. [2021-03-11 02:34:21,891 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 74 transitions, 298 flow [2021-03-11 02:34:21,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,892 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:21,892 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:21,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:34:21,893 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:21,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:21,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1015721958, now seen corresponding path program 1 times [2021-03-11 02:34:21,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:21,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106614818] [2021-03-11 02:34:21,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:21,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:21,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:21,966 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:21,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:21,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:21,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:21,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:21,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106614818] [2021-03-11 02:34:21,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:21,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:34:21,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863792709] [2021-03-11 02:34:21,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:34:21,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:21,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:34:21,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:34:21,995 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:21,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 74 transitions, 298 flow. Second operand has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:21,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:21,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:21,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:22,088 INFO L129 PetriNetUnfolder]: 37/272 cut-off events. [2021-03-11 02:34:22,088 INFO L130 PetriNetUnfolder]: For 1163/1229 co-relation queries the response was YES. [2021-03-11 02:34:22,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 272 events. 37/272 cut-off events. For 1163/1229 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1425 event pairs, 26 based on Foata normal form. 19/287 useless extension candidates. Maximal degree in co-relation 830. Up to 49 conditions per place. [2021-03-11 02:34:22,090 INFO L132 encePairwiseOnDemand]: 77/86 looper letters, 9 selfloop transitions, 7 changer transitions 11/84 dead transitions. [2021-03-11 02:34:22,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 84 transitions, 472 flow [2021-03-11 02:34:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 02:34:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 02:34:22,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 521 transitions. [2021-03-11 02:34:22,092 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8654485049833887 [2021-03-11 02:34:22,092 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 521 transitions. [2021-03-11 02:34:22,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 521 transitions. [2021-03-11 02:34:22,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:22,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 521 transitions. [2021-03-11 02:34:22,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,095 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,095 INFO L185 Difference]: Start difference. First operand has 105 places, 74 transitions, 298 flow. Second operand 7 states and 521 transitions. [2021-03-11 02:34:22,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 84 transitions, 472 flow [2021-03-11 02:34:22,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 84 transitions, 421 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-11 02:34:22,099 INFO L241 Difference]: Finished difference. Result has 102 places, 73 transitions, 288 flow [2021-03-11 02:34:22,099 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=288, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2021-03-11 02:34:22,100 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 22 predicate places. [2021-03-11 02:34:22,100 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 288 flow [2021-03-11 02:34:22,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,100 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:22,100 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:22,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:34:22,100 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:22,101 INFO L82 PathProgramCache]: Analyzing trace with hash 138398280, now seen corresponding path program 2 times [2021-03-11 02:34:22,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:22,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067239754] [2021-03-11 02:34:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:22,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:22,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:22,150 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:34:22,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:34:22,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:34:22,175 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:34:22,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:22,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067239754] [2021-03-11 02:34:22,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:22,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:34:22,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010608705] [2021-03-11 02:34:22,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:34:22,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:34:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:34:22,185 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:22,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:22,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:22,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:22,478 INFO L129 PetriNetUnfolder]: 1175/2416 cut-off events. [2021-03-11 02:34:22,478 INFO L130 PetriNetUnfolder]: For 1763/1852 co-relation queries the response was YES. [2021-03-11 02:34:22,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5229 conditions, 2416 events. 1175/2416 cut-off events. For 1763/1852 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 18540 event pairs, 118 based on Foata normal form. 70/2271 useless extension candidates. Maximal degree in co-relation 5176. Up to 900 conditions per place. [2021-03-11 02:34:22,498 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 23 selfloop transitions, 19 changer transitions 0/104 dead transitions. [2021-03-11 02:34:22,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 104 transitions, 434 flow [2021-03-11 02:34:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:34:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:34:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 683 transitions. [2021-03-11 02:34:22,500 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8824289405684754 [2021-03-11 02:34:22,500 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 683 transitions. [2021-03-11 02:34:22,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 683 transitions. [2021-03-11 02:34:22,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:22,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 683 transitions. [2021-03-11 02:34:22,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.88888888888889) internal successors, (683), 9 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,503 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,503 INFO L185 Difference]: Start difference. First operand has 102 places, 73 transitions, 288 flow. Second operand 9 states and 683 transitions. [2021-03-11 02:34:22,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 104 transitions, 434 flow [2021-03-11 02:34:22,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 104 transitions, 412 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-11 02:34:22,508 INFO L241 Difference]: Finished difference. Result has 106 places, 90 transitions, 400 flow [2021-03-11 02:34:22,508 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=400, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2021-03-11 02:34:22,508 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 26 predicate places. [2021-03-11 02:34:22,508 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 400 flow [2021-03-11 02:34:22,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,509 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:22,509 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:22,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:34:22,509 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:22,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:22,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1321927262, now seen corresponding path program 1 times [2021-03-11 02:34:22,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:22,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908859987] [2021-03-11 02:34:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:22,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:22,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:22,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:22,564 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:34:22,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:34:22,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:34:22,584 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:34:22,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:22,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:22,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:22,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908859987] [2021-03-11 02:34:22,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:22,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:34:22,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392283647] [2021-03-11 02:34:22,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:34:22,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:22,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:34:22,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:34:22,596 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:22,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 400 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:22,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:22,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:22,935 INFO L129 PetriNetUnfolder]: 1264/2630 cut-off events. [2021-03-11 02:34:22,935 INFO L130 PetriNetUnfolder]: For 7453/9304 co-relation queries the response was YES. [2021-03-11 02:34:22,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 2630 events. 1264/2630 cut-off events. For 7453/9304 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 21083 event pairs, 46 based on Foata normal form. 260/2678 useless extension candidates. Maximal degree in co-relation 9849. Up to 1384 conditions per place. [2021-03-11 02:34:22,958 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 25 selfloop transitions, 37 changer transitions 0/124 dead transitions. [2021-03-11 02:34:22,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 753 flow [2021-03-11 02:34:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 02:34:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 02:34:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 912 transitions. [2021-03-11 02:34:22,960 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8837209302325582 [2021-03-11 02:34:22,960 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 912 transitions. [2021-03-11 02:34:22,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 912 transitions. [2021-03-11 02:34:22,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:22,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 912 transitions. [2021-03-11 02:34:22,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,965 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,965 INFO L185 Difference]: Start difference. First operand has 106 places, 90 transitions, 400 flow. Second operand 12 states and 912 transitions. [2021-03-11 02:34:22,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 753 flow [2021-03-11 02:34:22,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 02:34:22,972 INFO L241 Difference]: Finished difference. Result has 121 places, 109 transitions, 678 flow [2021-03-11 02:34:22,972 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=678, PETRI_PLACES=121, PETRI_TRANSITIONS=109} [2021-03-11 02:34:22,973 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 41 predicate places. [2021-03-11 02:34:22,973 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 109 transitions, 678 flow [2021-03-11 02:34:22,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:22,973 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:22,973 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:22,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:34:22,973 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:22,973 INFO L82 PathProgramCache]: Analyzing trace with hash -161071213, now seen corresponding path program 1 times [2021-03-11 02:34:22,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:22,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521281651] [2021-03-11 02:34:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:23,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:23,028 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:34:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:34:23,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:34:23,051 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:34:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:23,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:23,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521281651] [2021-03-11 02:34:23,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:23,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 02:34:23,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636690761] [2021-03-11 02:34:23,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 02:34:23,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:23,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 02:34:23,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-11 02:34:23,063 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:23,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 109 transitions, 678 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:23,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:23,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:23,492 INFO L129 PetriNetUnfolder]: 1209/2542 cut-off events. [2021-03-11 02:34:23,492 INFO L130 PetriNetUnfolder]: For 21863/28341 co-relation queries the response was YES. [2021-03-11 02:34:23,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13641 conditions, 2542 events. 1209/2542 cut-off events. For 21863/28341 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 21035 event pairs, 8 based on Foata normal form. 409/2747 useless extension candidates. Maximal degree in co-relation 13580. Up to 1344 conditions per place. [2021-03-11 02:34:23,513 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 19 selfloop transitions, 57 changer transitions 8/146 dead transitions. [2021-03-11 02:34:23,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 146 transitions, 1252 flow [2021-03-11 02:34:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 02:34:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 02:34:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1141 transitions. [2021-03-11 02:34:23,515 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8844961240310077 [2021-03-11 02:34:23,515 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1141 transitions. [2021-03-11 02:34:23,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1141 transitions. [2021-03-11 02:34:23,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:23,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1141 transitions. [2021-03-11 02:34:23,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.06666666666666) internal successors, (1141), 15 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,520 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,520 INFO L185 Difference]: Start difference. First operand has 121 places, 109 transitions, 678 flow. Second operand 15 states and 1141 transitions. [2021-03-11 02:34:23,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 146 transitions, 1252 flow [2021-03-11 02:34:23,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 146 transitions, 1149 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-03-11 02:34:23,549 INFO L241 Difference]: Finished difference. Result has 134 places, 134 transitions, 1027 flow [2021-03-11 02:34:23,550 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1027, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2021-03-11 02:34:23,550 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 54 predicate places. [2021-03-11 02:34:23,550 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 1027 flow [2021-03-11 02:34:23,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,550 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:23,550 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:23,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:34:23,550 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2021654172, now seen corresponding path program 1 times [2021-03-11 02:34:23,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:23,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162792958] [2021-03-11 02:34:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:23,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:23,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:23,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:23,596 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:23,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:23,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:23,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162792958] [2021-03-11 02:34:23,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:23,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:34:23,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801135703] [2021-03-11 02:34:23,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:34:23,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:23,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:34:23,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:34:23,632 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:23,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 1027 flow. Second operand has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:23,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:23,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:23,913 INFO L129 PetriNetUnfolder]: 1112/2796 cut-off events. [2021-03-11 02:34:23,913 INFO L130 PetriNetUnfolder]: For 21923/22763 co-relation queries the response was YES. [2021-03-11 02:34:23,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12918 conditions, 2796 events. 1112/2796 cut-off events. For 21923/22763 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 26297 event pairs, 8 based on Foata normal form. 12/2612 useless extension candidates. Maximal degree in co-relation 12852. Up to 1052 conditions per place. [2021-03-11 02:34:23,938 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 15 selfloop transitions, 5 changer transitions 4/142 dead transitions. [2021-03-11 02:34:23,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 142 transitions, 1121 flow [2021-03-11 02:34:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:34:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:34:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 591 transitions. [2021-03-11 02:34:23,940 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2021-03-11 02:34:23,940 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 591 transitions. [2021-03-11 02:34:23,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 591 transitions. [2021-03-11 02:34:23,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:23,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 591 transitions. [2021-03-11 02:34:23,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 73.875) internal successors, (591), 8 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,944 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:23,944 INFO L185 Difference]: Start difference. First operand has 134 places, 134 transitions, 1027 flow. Second operand 8 states and 591 transitions. [2021-03-11 02:34:23,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 142 transitions, 1121 flow [2021-03-11 02:34:24,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 142 transitions, 808 flow, removed 114 selfloop flow, removed 11 redundant places. [2021-03-11 02:34:24,131 INFO L241 Difference]: Finished difference. Result has 134 places, 134 transitions, 733 flow [2021-03-11 02:34:24,131 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=733, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2021-03-11 02:34:24,131 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 54 predicate places. [2021-03-11 02:34:24,131 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 733 flow [2021-03-11 02:34:24,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,131 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:24,132 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:24,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:34:24,132 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:24,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:24,132 INFO L82 PathProgramCache]: Analyzing trace with hash -875830394, now seen corresponding path program 2 times [2021-03-11 02:34:24,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:24,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829639685] [2021-03-11 02:34:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:24,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:24,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:24,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:24,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:24,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:24,164 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-11 02:34:24,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:34:24,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 02:34:24,182 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 02:34:24,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:24,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:24,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829639685] [2021-03-11 02:34:24,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:24,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 02:34:24,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387515512] [2021-03-11 02:34:24,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 02:34:24,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:24,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 02:34:24,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-11 02:34:24,191 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-03-11 02:34:24,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 733 flow. Second operand has 9 states, 9 states have (on average 72.11111111111111) internal successors, (649), 9 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:24,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-03-11 02:34:24,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:24,706 INFO L129 PetriNetUnfolder]: 1436/3129 cut-off events. [2021-03-11 02:34:24,707 INFO L130 PetriNetUnfolder]: For 5938/8627 co-relation queries the response was YES. [2021-03-11 02:34:24,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10414 conditions, 3129 events. 1436/3129 cut-off events. For 5938/8627 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 28258 event pairs, 1 based on Foata normal form. 457/3321 useless extension candidates. Maximal degree in co-relation 10378. Up to 572 conditions per place. [2021-03-11 02:34:24,723 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 12 selfloop transitions, 63 changer transitions 21/158 dead transitions. [2021-03-11 02:34:24,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 158 transitions, 1082 flow [2021-03-11 02:34:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 02:34:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 02:34:24,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1354 transitions. [2021-03-11 02:34:24,727 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8746770025839793 [2021-03-11 02:34:24,727 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1354 transitions. [2021-03-11 02:34:24,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1354 transitions. [2021-03-11 02:34:24,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:24,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1354 transitions. [2021-03-11 02:34:24,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.22222222222223) internal successors, (1354), 18 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 86.0) internal successors, (1634), 19 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,735 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 86.0) internal successors, (1634), 19 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,735 INFO L185 Difference]: Start difference. First operand has 134 places, 134 transitions, 733 flow. Second operand 18 states and 1354 transitions. [2021-03-11 02:34:24,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 158 transitions, 1082 flow [2021-03-11 02:34:24,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 158 transitions, 1039 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-11 02:34:24,771 INFO L241 Difference]: Finished difference. Result has 144 places, 133 transitions, 854 flow [2021-03-11 02:34:24,772 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=854, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2021-03-11 02:34:24,772 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 64 predicate places. [2021-03-11 02:34:24,772 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 854 flow [2021-03-11 02:34:24,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 72.11111111111111) internal successors, (649), 9 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,772 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:34:24,772 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:34:24,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 02:34:24,772 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:34:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:34:24,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1399614661, now seen corresponding path program 1 times [2021-03-11 02:34:24,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:34:24,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484961791] [2021-03-11 02:34:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:34:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:34:24,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:24,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:34:24,816 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:34:24,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:34:24,825 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:34:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:34:24,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:24,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:34:24,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:34:24,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:34:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:34:24,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484961791] [2021-03-11 02:34:24,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:34:24,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:34:24,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111289415] [2021-03-11 02:34:24,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:34:24,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:34:24,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:34:24,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:34:24,857 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2021-03-11 02:34:24,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 854 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:24,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:34:24,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2021-03-11 02:34:24,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:34:25,150 INFO L129 PetriNetUnfolder]: 1212/3041 cut-off events. [2021-03-11 02:34:25,150 INFO L130 PetriNetUnfolder]: For 8062/8580 co-relation queries the response was YES. [2021-03-11 02:34:25,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10134 conditions, 3041 events. 1212/3041 cut-off events. For 8062/8580 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 30150 event pairs, 0 based on Foata normal form. 7/2823 useless extension candidates. Maximal degree in co-relation 10066. Up to 410 conditions per place. [2021-03-11 02:34:25,166 INFO L132 encePairwiseOnDemand]: 73/86 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2021-03-11 02:34:25,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 138 transitions, 964 flow [2021-03-11 02:34:25,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 02:34:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 02:34:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 546 transitions. [2021-03-11 02:34:25,167 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7936046511627907 [2021-03-11 02:34:25,167 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 546 transitions. [2021-03-11 02:34:25,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 546 transitions. [2021-03-11 02:34:25,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:34:25,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 546 transitions. [2021-03-11 02:34:25,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.25) internal successors, (546), 8 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:25,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:25,171 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:25,171 INFO L185 Difference]: Start difference. First operand has 144 places, 133 transitions, 854 flow. Second operand 8 states and 546 transitions. [2021-03-11 02:34:25,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 138 transitions, 964 flow [2021-03-11 02:34:25,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 836 flow, removed 16 selfloop flow, removed 17 redundant places. [2021-03-11 02:34:25,263 INFO L241 Difference]: Finished difference. Result has 130 places, 0 transitions, 0 flow [2021-03-11 02:34:25,263 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=130, PETRI_TRANSITIONS=0} [2021-03-11 02:34:25,263 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 50 predicate places. [2021-03-11 02:34:25,263 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 0 transitions, 0 flow [2021-03-11 02:34:25,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:34:25,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 02:34:25,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:34:25 BasicIcfg [2021-03-11 02:34:25,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:34:25,268 INFO L168 Benchmark]: Toolchain (without parser) took 6097.32 ms. Allocated memory was 343.9 MB in the beginning and 564.1 MB in the end (delta: 220.2 MB). Free memory was 307.6 MB in the beginning and 289.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 239.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,269 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 343.9 MB. Free memory was 325.2 MB in the beginning and 325.1 MB in the end (delta: 126.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:34:25,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.99 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 306.9 MB in the end (delta: 1.4 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.59 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 304.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,270 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 343.9 MB. Free memory was 304.8 MB in the beginning and 302.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,270 INFO L168 Benchmark]: RCFGBuilder took 385.48 ms. Allocated memory is still 343.9 MB. Free memory was 302.7 MB in the beginning and 277.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,270 INFO L168 Benchmark]: TraceAbstraction took 5264.70 ms. Allocated memory was 343.9 MB in the beginning and 564.1 MB in the end (delta: 220.2 MB). Free memory was 277.6 MB in the beginning and 289.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 210.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:34:25,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 343.9 MB. Free memory was 325.2 MB in the beginning and 325.1 MB in the end (delta: 126.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 362.99 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 306.9 MB in the end (delta: 1.4 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.59 ms. Allocated memory is still 343.9 MB. Free memory was 306.9 MB in the beginning and 304.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 343.9 MB. Free memory was 304.8 MB in the beginning and 302.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 385.48 ms. Allocated memory is still 343.9 MB. Free memory was 302.7 MB in the beginning and 277.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5264.70 ms. Allocated memory was 343.9 MB in the beginning and 564.1 MB in the end (delta: 220.2 MB). Free memory was 277.6 MB in the beginning and 289.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 210.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5180.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3789.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 37.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 134 SDtfs, 346 SDslu, 442 SDs, 0 SdLazy, 626 SolverSat, 173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 390.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1223.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1027occurred in iteration=9, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.7ms SsaConstructionTime, 204.0ms SatisfiabilityAnalysisTime, 934.4ms InterpolantComputationTime, 619 NumberOfCodeBlocks, 619 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 2109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...