/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:54:20,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:54:20,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:54:20,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:54:20,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:54:20,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:54:20,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:54:20,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:54:20,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:54:20,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:54:20,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:54:20,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:54:20,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:54:20,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:54:20,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:54:20,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:54:20,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:54:20,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:54:20,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:54:20,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:54:20,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:54:20,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:54:20,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:54:20,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:54:20,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:54:20,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:54:20,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:54:20,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:54:20,840 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 19:54:20,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:54:20,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:54:20,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:54:20,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:54:20,891 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:54:20,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:54:20,893 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:54:20,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:54:20,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:54:20,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:54:20,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:54:20,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:54:20,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:54:20,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:54:20,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:54:20,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:54:20,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:54:20,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:54:20,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:54:20,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:54:20,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:54:20,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:54:20,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:54:20,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:54:20,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:54:20,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:54:20,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:54:20,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:54:20,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:54:20,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:54:20,899 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:54:21,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:54:21,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:54:21,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:54:21,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:54:21,327 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:54:21,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i [2021-04-28 19:54:21,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98992cd1/d1216f17ee4d4df8955d55bdd2187b9b/FLAG21fa903c0 [2021-04-28 19:54:22,316 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:54:22,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i [2021-04-28 19:54:22,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98992cd1/d1216f17ee4d4df8955d55bdd2187b9b/FLAG21fa903c0 [2021-04-28 19:54:22,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98992cd1/d1216f17ee4d4df8955d55bdd2187b9b [2021-04-28 19:54:22,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:54:22,585 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:54:22,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:54:22,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:54:22,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:54:22,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:54:22" (1/1) ... [2021-04-28 19:54:22,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9191ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:22, skipping insertion in model container [2021-04-28 19:54:22,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:54:22" (1/1) ... [2021-04-28 19:54:22,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:54:22,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:54:22,971 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/mix030_pso.opt.i[948,961] [2021-04-28 19:54:23,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:54:23,182 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:54:23,208 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/mix030_pso.opt.i[948,961] [2021-04-28 19:54:23,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:54:23,428 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:54:23,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23 WrapperNode [2021-04-28 19:54:23,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:54:23,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:54:23,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:54:23,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:54:23,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:54:23,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:54:23,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:54:23,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:54:23,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (1/1) ... [2021-04-28 19:54:23,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:54:23,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:54:23,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:54:23,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:54:23,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (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 [2021-04-28 19:54:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:54:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:54:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:54:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:54:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:54:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:54:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:54:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:54:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:54:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:54:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:54:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:54:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:54:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:54:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:54:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:54:23,701 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 19:54:26,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:54:26,124 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:54:26,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:54:26 BoogieIcfgContainer [2021-04-28 19:54:26,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:54:26,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:54:26,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:54:26,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:54:26,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:54:22" (1/3) ... [2021-04-28 19:54:26,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0faacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:54:26, skipping insertion in model container [2021-04-28 19:54:26,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:54:23" (2/3) ... [2021-04-28 19:54:26,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0faacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:54:26, skipping insertion in model container [2021-04-28 19:54:26,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:54:26" (3/3) ... [2021-04-28 19:54:26,135 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_pso.opt.i [2021-04-28 19:54:26,143 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:54:26,149 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:54:26,150 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:54:26,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,198 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,199 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,204 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,204 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,204 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,204 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,205 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,205 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,205 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,206 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,207 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,216 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,217 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,217 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,218 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,218 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:54:26,225 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:54:26,251 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:54:26,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:54:26,277 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:54:26,277 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:54:26,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:54:26,277 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:54:26,278 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:54:26,278 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:54:26,278 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:54:26,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:54:26,351 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:54:26,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:26,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:54:26,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:54:26,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-04-28 19:54:26,365 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:54:26,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:54:26,385 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:54:26,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-04-28 19:54:26,416 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:54:26,416 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:54:26,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:54:26,422 INFO L146 LiptonReduction]: Number of co-enabled transitions 2630 [2021-04-28 19:54:31,013 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:54:31,539 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:54:33,919 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:54:34,999 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:54:35,959 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:54:36,074 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:54:36,649 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 19:54:36,890 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 19:54:39,647 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:54:40,195 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:54:42,633 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:54:43,741 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:54:45,005 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:54:46,160 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 19:54:48,736 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:54:49,937 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:54:51,330 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 19:54:51,968 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 19:54:54,776 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 19:54:56,048 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 19:54:59,230 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:54:59,847 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:55:02,845 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:55:04,228 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:55:06,464 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:55:07,178 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:55:10,617 WARN L205 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:55:12,141 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:55:13,943 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:55:14,734 WARN L205 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:55:18,390 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:55:20,032 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:55:21,847 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:55:22,670 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:55:26,230 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:55:27,886 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:55:32,772 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:55:33,661 WARN L205 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:55:37,495 WARN L205 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:55:39,225 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:55:42,276 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:55:43,121 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:55:47,149 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:55:48,985 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:55:51,172 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:55:52,111 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:55:56,393 WARN L205 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 19:55:58,331 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 19:56:01,917 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:02,053 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:02,196 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:02,328 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:02,449 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:02,572 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:02,697 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:02,825 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:02,929 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:03,036 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:03,143 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:03,246 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:03,380 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:03,516 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:03,659 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:03,803 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:03,905 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:04,011 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:04,119 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:04,231 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:04,343 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:04,452 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:04,564 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:04,676 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:04,828 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:56:04,977 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:56:05,122 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:56:05,278 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:56:05,395 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:05,503 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:05,616 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:05,727 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:05,867 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:06,005 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:06,152 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:06,289 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:07,386 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:07,500 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:07,623 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:07,739 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:56:08,273 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:08,412 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:08,551 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:08,697 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:08,837 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:08,978 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,118 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,259 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,398 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,538 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,678 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,819 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:09,938 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:56:10,353 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:10,475 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:10,598 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:10,721 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:56:10,863 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:11,005 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:11,148 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:11,292 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:56:11,423 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:11,554 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:11,683 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:11,814 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:56:12,026 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:56:12,234 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:56:12,439 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:56:12,643 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:56:12,750 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:12,857 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:12,962 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:13,068 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:13,204 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:13,357 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:13,492 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:13,624 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:56:14,517 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:56:14,729 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:56:14,955 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:56:15,171 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:56:15,280 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:15,391 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:15,501 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:15,610 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:56:15,813 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:56:16,013 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:56:16,214 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:56:16,417 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:56:16,619 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:56:16,826 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:56:17,028 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:56:17,230 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:56:17,434 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:17,614 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:17,792 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:17,968 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:18,136 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:56:18,307 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:56:18,482 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:56:18,654 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:56:18,855 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:56:19,049 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:56:19,240 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:56:19,435 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:56:19,621 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:19,821 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:20,011 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:20,195 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:56:20,431 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:56:20,662 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:56:20,894 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:56:21,121 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:56:21,286 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:56:21,450 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:56:21,616 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:56:21,783 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:56:21,968 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:56:22,161 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:56:22,333 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:56:22,509 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:56:22,915 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:56:23,197 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:56:23,476 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:56:23,758 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:56:24,063 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:56:24,371 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:56:24,692 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:56:25,013 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:56:25,350 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:25,688 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:26,017 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:26,351 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:27,283 WARN L205 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:56:27,696 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:56:28,591 WARN L205 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:56:29,004 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:56:29,301 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:56:29,598 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:56:29,894 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:56:30,195 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:56:30,535 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:30,876 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:31,223 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:31,566 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:32,442 WARN L205 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:56:32,903 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:56:33,855 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:56:34,299 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:56:34,637 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:34,981 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:35,318 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:35,663 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:35,935 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:36,197 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:36,481 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:36,762 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:37,036 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:56:37,319 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:56:37,584 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:56:37,838 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:56:38,068 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:56:38,303 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:56:38,561 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:56:38,818 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:56:39,113 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:39,407 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:39,665 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:39,925 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:56:40,264 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:56:40,608 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:56:40,953 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:56:41,306 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:56:41,657 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:42,010 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:42,363 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:42,713 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:56:43,017 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:56:43,315 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:56:43,607 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:56:43,920 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:56:44,250 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:56:44,585 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:56:44,911 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:56:45,223 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:56:45,455 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:56:45,702 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:56:45,938 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:56:46,173 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:56:46,235 INFO L158 LiptonReduction]: Checked pairs total: 23418 [2021-04-28 19:56:46,236 INFO L160 LiptonReduction]: Total number of compositions: 231 [2021-04-28 19:56:46,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139877 [2021-04-28 19:56:46,264 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-04-28 19:56:46,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:56:46,264 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:46,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:46,265 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:46,271 INFO L82 PathProgramCache]: Analyzing trace with hash 101771008, now seen corresponding path program 1 times [2021-04-28 19:56:46,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:46,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365136363] [2021-04-28 19:56:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:46,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:46,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:46,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365136363] [2021-04-28 19:56:46,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:46,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:56:46,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690695025] [2021-04-28 19:56:46,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:56:46,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:46,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:56:46,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:56:46,647 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 346 [2021-04-28 19:56:46,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 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) [2021-04-28 19:56:46,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:46,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 346 [2021-04-28 19:56:46,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:47,315 INFO L129 PetriNetUnfolder]: 329/809 cut-off events. [2021-04-28 19:56:47,315 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:56:47,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 809 events. 329/809 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 5988 event pairs, 195 based on Foata normal form. 11/397 useless extension candidates. Maximal degree in co-relation 1297. Up to 401 conditions per place. [2021-04-28 19:56:47,325 INFO L132 encePairwiseOnDemand]: 329/346 looper letters, 9 selfloop transitions, 2 changer transitions 93/147 dead transitions. [2021-04-28 19:56:47,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 404 flow [2021-04-28 19:56:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:47,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2021-04-28 19:56:47,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8217726396917149 [2021-04-28 19:56:47,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 853 transitions. [2021-04-28 19:56:47,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 853 transitions. [2021-04-28 19:56:47,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:47,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 853 transitions. [2021-04-28 19:56:47,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 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) [2021-04-28 19:56:47,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:47,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:47,403 INFO L185 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 853 transitions. [2021-04-28 19:56:47,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 404 flow [2021-04-28 19:56:47,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:56:47,411 INFO L241 Difference]: Finished difference. Result has 140 places, 50 transitions, 112 flow [2021-04-28 19:56:47,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=140, PETRI_TRANSITIONS=50} [2021-04-28 19:56:47,415 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -5 predicate places. [2021-04-28 19:56:47,415 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:47,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:56:47,416 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:56:47,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 112 flow [2021-04-28 19:56:47,426 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 19:56:47,426 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:56:47,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 167 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:56:47,428 INFO L146 LiptonReduction]: Number of co-enabled transitions 1494 [2021-04-28 19:56:48,173 INFO L158 LiptonReduction]: Checked pairs total: 1518 [2021-04-28 19:56:48,173 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:48,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 758 [2021-04-28 19:56:48,176 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2021-04-28 19:56:48,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 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) [2021-04-28 19:56:48,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:48,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:48,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:56:48,178 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:48,178 INFO L82 PathProgramCache]: Analyzing trace with hash 978090954, now seen corresponding path program 1 times [2021-04-28 19:56:48,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:48,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52861336] [2021-04-28 19:56:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:48,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:48,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:48,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52861336] [2021-04-28 19:56:48,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:48,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:56:48,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593644603] [2021-04-28 19:56:48,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:56:48,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:48,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:56:48,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:56:48,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 346 [2021-04-28 19:56:48,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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) [2021-04-28 19:56:48,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:48,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 346 [2021-04-28 19:56:48,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:48,471 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-28 19:56:48,472 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:56:48,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 78 events. 7/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 262 event pairs, 3 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2021-04-28 19:56:48,473 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 4 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2021-04-28 19:56:48,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 130 flow [2021-04-28 19:56:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2021-04-28 19:56:48,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8227360308285164 [2021-04-28 19:56:48,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 854 transitions. [2021-04-28 19:56:48,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 854 transitions. [2021-04-28 19:56:48,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:48,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 854 transitions. [2021-04-28 19:56:48,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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) [2021-04-28 19:56:48,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:48,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:48,489 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 854 transitions. [2021-04-28 19:56:48,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 130 flow [2021-04-28 19:56:48,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:56:48,491 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 123 flow [2021-04-28 19:56:48,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 19:56:48,492 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:56:48,492 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:48,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:56:48,493 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:56:48,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 19:56:48,503 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 19:56:48,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:56:48,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 223 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2021-04-28 19:56:48,506 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 19:56:49,285 INFO L158 LiptonReduction]: Checked pairs total: 1416 [2021-04-28 19:56:49,286 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:49,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 794 [2021-04-28 19:56:49,287 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 19:56:49,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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) [2021-04-28 19:56:49,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:49,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:49,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:56:49,289 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:49,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:49,289 INFO L82 PathProgramCache]: Analyzing trace with hash 255008319, now seen corresponding path program 1 times [2021-04-28 19:56:49,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:49,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802055268] [2021-04-28 19:56:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:49,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:49,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802055268] [2021-04-28 19:56:49,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:49,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:56:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732436884] [2021-04-28 19:56:49,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:56:49,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:49,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:56:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:56:49,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:56:49,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 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) [2021-04-28 19:56:49,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:49,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:56:49,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:49,430 INFO L129 PetriNetUnfolder]: 10/101 cut-off events. [2021-04-28 19:56:49,430 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-28 19:56:49,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 101 events. 10/101 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 424 event pairs, 4 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 141. Up to 18 conditions per place. [2021-04-28 19:56:49,432 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2021-04-28 19:56:49,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2021-04-28 19:56:49,438 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7235067437379576 [2021-04-28 19:56:49,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2021-04-28 19:56:49,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2021-04-28 19:56:49,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:49,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2021-04-28 19:56:49,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2021-04-28 19:56:49,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:49,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:49,447 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 751 transitions. [2021-04-28 19:56:49,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:56:49,449 INFO L241 Difference]: Finished difference. Result has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2021-04-28 19:56:49,450 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:56:49,450 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:49,450 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,450 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,465 INFO L129 PetriNetUnfolder]: 10/89 cut-off events. [2021-04-28 19:56:49,465 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-28 19:56:49,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 89 events. 10/89 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 390 event pairs, 4 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 129. Up to 18 conditions per place. [2021-04-28 19:56:49,468 INFO L146 LiptonReduction]: Number of co-enabled transitions 1626 [2021-04-28 19:56:49,507 INFO L158 LiptonReduction]: Checked pairs total: 1128 [2021-04-28 19:56:49,507 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:49,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-28 19:56:49,508 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 139 flow [2021-04-28 19:56:49,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 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) [2021-04-28 19:56:49,510 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:49,510 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:49,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:56:49,510 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:49,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:49,511 INFO L82 PathProgramCache]: Analyzing trace with hash -652502804, now seen corresponding path program 1 times [2021-04-28 19:56:49,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:49,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269469745] [2021-04-28 19:56:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:49,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:49,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:49,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269469745] [2021-04-28 19:56:49,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:49,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:56:49,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119778306] [2021-04-28 19:56:49,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:56:49,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:56:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:56:49,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 346 [2021-04-28 19:56:49,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 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) [2021-04-28 19:56:49,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:49,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 346 [2021-04-28 19:56:49,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:49,622 INFO L129 PetriNetUnfolder]: 8/84 cut-off events. [2021-04-28 19:56:49,622 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-04-28 19:56:49,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 84 events. 8/84 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 325 event pairs, 2 based on Foata normal form. 2/55 useless extension candidates. Maximal degree in co-relation 124. Up to 15 conditions per place. [2021-04-28 19:56:49,624 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 1 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2021-04-28 19:56:49,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 52 transitions, 145 flow [2021-04-28 19:56:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2021-04-28 19:56:49,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7061657032755299 [2021-04-28 19:56:49,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2021-04-28 19:56:49,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2021-04-28 19:56:49,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:49,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2021-04-28 19:56:49,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2021-04-28 19:56:49,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:49,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:49,639 INFO L185 Difference]: Start difference. First operand has 62 places, 52 transitions, 139 flow. Second operand 3 states and 733 transitions. [2021-04-28 19:56:49,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 52 transitions, 145 flow [2021-04-28 19:56:49,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 52 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:56:49,642 INFO L241 Difference]: Finished difference. Result has 64 places, 52 transitions, 144 flow [2021-04-28 19:56:49,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2021-04-28 19:56:49,642 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -81 predicate places. [2021-04-28 19:56:49,643 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:49,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 52 transitions, 144 flow [2021-04-28 19:56:49,643 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 52 transitions, 144 flow [2021-04-28 19:56:49,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 52 transitions, 144 flow [2021-04-28 19:56:49,656 INFO L129 PetriNetUnfolder]: 6/79 cut-off events. [2021-04-28 19:56:49,657 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-04-28 19:56:49,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 79 events. 6/79 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 346 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2021-04-28 19:56:49,660 INFO L146 LiptonReduction]: Number of co-enabled transitions 1622 [2021-04-28 19:56:50,131 INFO L158 LiptonReduction]: Checked pairs total: 1060 [2021-04-28 19:56:50,132 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:50,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 489 [2021-04-28 19:56:50,133 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 144 flow [2021-04-28 19:56:50,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 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) [2021-04-28 19:56:50,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:50,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:50,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:56:50,135 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:50,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1247151215, now seen corresponding path program 1 times [2021-04-28 19:56:50,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:50,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285706568] [2021-04-28 19:56:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:50,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:50,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:50,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:56:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:50,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285706568] [2021-04-28 19:56:50,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:50,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:56:50,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796200701] [2021-04-28 19:56:50,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:56:50,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:50,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:56:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:56:50,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 346 [2021-04-28 19:56:50,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 220.75) internal successors, (883), 4 states have internal predecessors, (883), 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) [2021-04-28 19:56:50,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:50,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 346 [2021-04-28 19:56:50,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:50,722 INFO L129 PetriNetUnfolder]: 224/537 cut-off events. [2021-04-28 19:56:50,722 INFO L130 PetriNetUnfolder]: For 303/342 co-relation queries the response was YES. [2021-04-28 19:56:50,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 537 events. 224/537 cut-off events. For 303/342 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3337 event pairs, 137 based on Foata normal form. 3/388 useless extension candidates. Maximal degree in co-relation 1076. Up to 288 conditions per place. [2021-04-28 19:56:50,731 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 9 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2021-04-28 19:56:50,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 56 transitions, 176 flow [2021-04-28 19:56:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2021-04-28 19:56:50,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6483622350674374 [2021-04-28 19:56:50,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 673 transitions. [2021-04-28 19:56:50,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 673 transitions. [2021-04-28 19:56:50,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:50,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 673 transitions. [2021-04-28 19:56:50,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2021-04-28 19:56:50,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:50,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:50,747 INFO L185 Difference]: Start difference. First operand has 64 places, 52 transitions, 144 flow. Second operand 3 states and 673 transitions. [2021-04-28 19:56:50,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 56 transitions, 176 flow [2021-04-28 19:56:50,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 56 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:56:50,750 INFO L241 Difference]: Finished difference. Result has 65 places, 54 transitions, 159 flow [2021-04-28 19:56:50,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2021-04-28 19:56:50,750 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -80 predicate places. [2021-04-28 19:56:50,751 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:50,751 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 54 transitions, 159 flow [2021-04-28 19:56:50,751 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 54 transitions, 159 flow [2021-04-28 19:56:50,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 159 flow [2021-04-28 19:56:50,772 INFO L129 PetriNetUnfolder]: 14/115 cut-off events. [2021-04-28 19:56:50,773 INFO L130 PetriNetUnfolder]: For 68/70 co-relation queries the response was YES. [2021-04-28 19:56:50,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 115 events. 14/115 cut-off events. For 68/70 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 598 event pairs, 7 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 195. Up to 24 conditions per place. [2021-04-28 19:56:50,777 INFO L146 LiptonReduction]: Number of co-enabled transitions 1724 [2021-04-28 19:56:50,939 INFO L158 LiptonReduction]: Checked pairs total: 934 [2021-04-28 19:56:50,939 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:50,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 188 [2021-04-28 19:56:50,940 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 159 flow [2021-04-28 19:56:50,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 220.75) internal successors, (883), 4 states have internal predecessors, (883), 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) [2021-04-28 19:56:50,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:50,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:50,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:56:50,942 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:50,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1024852473, now seen corresponding path program 1 times [2021-04-28 19:56:50,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:50,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362928070] [2021-04-28 19:56:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:51,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:56:51,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:51,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:56:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:51,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362928070] [2021-04-28 19:56:51,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:51,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:56:51,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650025697] [2021-04-28 19:56:51,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:56:51,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:51,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:56:51,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:56:51,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 346 [2021-04-28 19:56:51,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 223.8) internal successors, (1119), 5 states have internal predecessors, (1119), 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) [2021-04-28 19:56:51,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:51,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 346 [2021-04-28 19:56:51,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:51,444 INFO L129 PetriNetUnfolder]: 208/473 cut-off events. [2021-04-28 19:56:51,444 INFO L130 PetriNetUnfolder]: For 560/636 co-relation queries the response was YES. [2021-04-28 19:56:51,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 473 events. 208/473 cut-off events. For 560/636 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2766 event pairs, 77 based on Foata normal form. 17/360 useless extension candidates. Maximal degree in co-relation 1068. Up to 238 conditions per place. [2021-04-28 19:56:51,453 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 9 selfloop transitions, 8 changer transitions 0/61 dead transitions. [2021-04-28 19:56:51,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 61 transitions, 209 flow [2021-04-28 19:56:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:56:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:56:51,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 910 transitions. [2021-04-28 19:56:51,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6575144508670521 [2021-04-28 19:56:51,460 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 910 transitions. [2021-04-28 19:56:51,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 910 transitions. [2021-04-28 19:56:51,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:51,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 910 transitions. [2021-04-28 19:56:51,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 227.5) internal successors, (910), 4 states have internal predecessors, (910), 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) [2021-04-28 19:56:51,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 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) [2021-04-28 19:56:51,472 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 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) [2021-04-28 19:56:51,472 INFO L185 Difference]: Start difference. First operand has 65 places, 54 transitions, 159 flow. Second operand 4 states and 910 transitions. [2021-04-28 19:56:51,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 61 transitions, 209 flow [2021-04-28 19:56:51,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 61 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:56:51,480 INFO L241 Difference]: Finished difference. Result has 69 places, 58 transitions, 204 flow [2021-04-28 19:56:51,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2021-04-28 19:56:51,481 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -76 predicate places. [2021-04-28 19:56:51,481 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:51,481 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 58 transitions, 204 flow [2021-04-28 19:56:51,481 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 58 transitions, 204 flow [2021-04-28 19:56:51,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 58 transitions, 204 flow [2021-04-28 19:56:51,539 INFO L129 PetriNetUnfolder]: 70/254 cut-off events. [2021-04-28 19:56:51,540 INFO L130 PetriNetUnfolder]: For 489/529 co-relation queries the response was YES. [2021-04-28 19:56:51,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 254 events. 70/254 cut-off events. For 489/529 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1569 event pairs, 41 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 605. Up to 90 conditions per place. [2021-04-28 19:56:51,548 INFO L146 LiptonReduction]: Number of co-enabled transitions 1872 [2021-04-28 19:56:51,659 INFO L158 LiptonReduction]: Checked pairs total: 470 [2021-04-28 19:56:51,659 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:51,660 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-04-28 19:56:51,665 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 204 flow [2021-04-28 19:56:51,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 223.8) internal successors, (1119), 5 states have internal predecessors, (1119), 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) [2021-04-28 19:56:51,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:51,666 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:51,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:56:51,666 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1361177933, now seen corresponding path program 1 times [2021-04-28 19:56:51,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:51,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385900031] [2021-04-28 19:56:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:51,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:56:51,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:51,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:51,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:51,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385900031] [2021-04-28 19:56:51,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:51,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:56:51,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744784898] [2021-04-28 19:56:51,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:56:51,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:51,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:56:51,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:56:51,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 346 [2021-04-28 19:56:51,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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) [2021-04-28 19:56:51,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:51,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 346 [2021-04-28 19:56:51,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:52,051 INFO L129 PetriNetUnfolder]: 196/488 cut-off events. [2021-04-28 19:56:52,051 INFO L130 PetriNetUnfolder]: For 857/1053 co-relation queries the response was YES. [2021-04-28 19:56:52,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 488 events. 196/488 cut-off events. For 857/1053 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2979 event pairs, 60 based on Foata normal form. 10/362 useless extension candidates. Maximal degree in co-relation 1329. Up to 264 conditions per place. [2021-04-28 19:56:52,061 INFO L132 encePairwiseOnDemand]: 341/346 looper letters, 15 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2021-04-28 19:56:52,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 273 flow [2021-04-28 19:56:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:56:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:56:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2021-04-28 19:56:52,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6868978805394991 [2021-04-28 19:56:52,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 713 transitions. [2021-04-28 19:56:52,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions. [2021-04-28 19:56:52,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:52,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions. [2021-04-28 19:56:52,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 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) [2021-04-28 19:56:52,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:52,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:56:52,075 INFO L185 Difference]: Start difference. First operand has 69 places, 58 transitions, 204 flow. Second operand 3 states and 713 transitions. [2021-04-28 19:56:52,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 273 flow [2021-04-28 19:56:52,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 266 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 19:56:52,080 INFO L241 Difference]: Finished difference. Result has 71 places, 62 transitions, 241 flow [2021-04-28 19:56:52,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=241, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2021-04-28 19:56:52,080 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -74 predicate places. [2021-04-28 19:56:52,080 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:52,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 62 transitions, 241 flow [2021-04-28 19:56:52,081 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 62 transitions, 241 flow [2021-04-28 19:56:52,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 62 transitions, 241 flow [2021-04-28 19:56:52,153 INFO L129 PetriNetUnfolder]: 105/314 cut-off events. [2021-04-28 19:56:52,153 INFO L130 PetriNetUnfolder]: For 1026/1084 co-relation queries the response was YES. [2021-04-28 19:56:52,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 314 events. 105/314 cut-off events. For 1026/1084 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1926 event pairs, 42 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 883. Up to 119 conditions per place. [2021-04-28 19:56:52,165 INFO L146 LiptonReduction]: Number of co-enabled transitions 2044 [2021-04-28 19:56:52,171 INFO L158 LiptonReduction]: Checked pairs total: 309 [2021-04-28 19:56:52,171 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:52,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 19:56:52,173 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 241 flow [2021-04-28 19:56:52,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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) [2021-04-28 19:56:52,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:52,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:52,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:56:52,174 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:52,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:52,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1317486837, now seen corresponding path program 1 times [2021-04-28 19:56:52,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:52,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035643328] [2021-04-28 19:56:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:52,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:52,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:56:52,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:52,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:52,339 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-04-28 19:56:52,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:56:52,376 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-04-28 19:56:52,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:56:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:52,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035643328] [2021-04-28 19:56:52,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:52,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:56:52,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274976789] [2021-04-28 19:56:52,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:56:52,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:52,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:56:52,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:56:52,411 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 346 [2021-04-28 19:56:52,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 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) [2021-04-28 19:56:52,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:52,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 346 [2021-04-28 19:56:52,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:52,747 INFO L129 PetriNetUnfolder]: 216/512 cut-off events. [2021-04-28 19:56:52,747 INFO L130 PetriNetUnfolder]: For 1286/1669 co-relation queries the response was YES. [2021-04-28 19:56:52,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 512 events. 216/512 cut-off events. For 1286/1669 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3143 event pairs, 43 based on Foata normal form. 27/415 useless extension candidates. Maximal degree in co-relation 1560. Up to 238 conditions per place. [2021-04-28 19:56:52,757 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 14 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2021-04-28 19:56:52,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 70 transitions, 332 flow [2021-04-28 19:56:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:56:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:56:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2021-04-28 19:56:52,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6190751445086705 [2021-04-28 19:56:52,766 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2021-04-28 19:56:52,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2021-04-28 19:56:52,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:52,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2021-04-28 19:56:52,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 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) [2021-04-28 19:56:52,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:52,775 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:52,775 INFO L185 Difference]: Start difference. First operand has 71 places, 62 transitions, 241 flow. Second operand 5 states and 1071 transitions. [2021-04-28 19:56:52,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 70 transitions, 332 flow [2021-04-28 19:56:52,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 70 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:56:52,784 INFO L241 Difference]: Finished difference. Result has 75 places, 65 transitions, 286 flow [2021-04-28 19:56:52,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2021-04-28 19:56:52,784 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -70 predicate places. [2021-04-28 19:56:52,784 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:52,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 65 transitions, 286 flow [2021-04-28 19:56:52,785 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 65 transitions, 286 flow [2021-04-28 19:56:52,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 65 transitions, 286 flow [2021-04-28 19:56:52,884 INFO L129 PetriNetUnfolder]: 119/353 cut-off events. [2021-04-28 19:56:52,884 INFO L130 PetriNetUnfolder]: For 1180/1254 co-relation queries the response was YES. [2021-04-28 19:56:52,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 353 events. 119/353 cut-off events. For 1180/1254 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2194 event pairs, 35 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 1062. Up to 125 conditions per place. [2021-04-28 19:56:52,898 INFO L146 LiptonReduction]: Number of co-enabled transitions 2184 [2021-04-28 19:56:52,952 INFO L158 LiptonReduction]: Checked pairs total: 370 [2021-04-28 19:56:52,952 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:52,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-04-28 19:56:52,953 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 65 transitions, 286 flow [2021-04-28 19:56:52,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 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) [2021-04-28 19:56:52,954 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:52,955 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:52,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:56:52,955 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:52,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2069322311, now seen corresponding path program 2 times [2021-04-28 19:56:52,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:52,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499550891] [2021-04-28 19:56:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:53,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:53,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:56:53,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:53,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:53,155 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 19:56:53,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 19:56:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:53,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499550891] [2021-04-28 19:56:53,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:53,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:56:53,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037180485] [2021-04-28 19:56:53,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:56:53,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:53,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:56:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:56:53,219 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 346 [2021-04-28 19:56:53,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 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) [2021-04-28 19:56:53,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:53,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 346 [2021-04-28 19:56:53,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:53,601 INFO L129 PetriNetUnfolder]: 242/574 cut-off events. [2021-04-28 19:56:53,602 INFO L130 PetriNetUnfolder]: For 2177/2753 co-relation queries the response was YES. [2021-04-28 19:56:53,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 574 events. 242/574 cut-off events. For 2177/2753 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3633 event pairs, 21 based on Foata normal form. 41/479 useless extension candidates. Maximal degree in co-relation 1988. Up to 256 conditions per place. [2021-04-28 19:56:53,616 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 18 selfloop transitions, 12 changer transitions 0/74 dead transitions. [2021-04-28 19:56:53,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 74 transitions, 398 flow [2021-04-28 19:56:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:56:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:56:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1110 transitions. [2021-04-28 19:56:53,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416184971098265 [2021-04-28 19:56:53,625 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1110 transitions. [2021-04-28 19:56:53,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1110 transitions. [2021-04-28 19:56:53,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:53,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1110 transitions. [2021-04-28 19:56:53,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2021-04-28 19:56:53,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:53,635 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:53,635 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 286 flow. Second operand 5 states and 1110 transitions. [2021-04-28 19:56:53,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 74 transitions, 398 flow [2021-04-28 19:56:53,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 374 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 19:56:53,640 INFO L241 Difference]: Finished difference. Result has 77 places, 68 transitions, 322 flow [2021-04-28 19:56:53,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=322, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2021-04-28 19:56:53,641 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -68 predicate places. [2021-04-28 19:56:53,641 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:53,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 322 flow [2021-04-28 19:56:53,642 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 322 flow [2021-04-28 19:56:53,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 322 flow [2021-04-28 19:56:53,724 INFO L129 PetriNetUnfolder]: 130/357 cut-off events. [2021-04-28 19:56:53,724 INFO L130 PetriNetUnfolder]: For 1562/1654 co-relation queries the response was YES. [2021-04-28 19:56:53,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 357 events. 130/357 cut-off events. For 1562/1654 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2131 event pairs, 49 based on Foata normal form. 1/241 useless extension candidates. Maximal degree in co-relation 1251. Up to 142 conditions per place. [2021-04-28 19:56:53,737 INFO L146 LiptonReduction]: Number of co-enabled transitions 2330 [2021-04-28 19:56:53,788 INFO L158 LiptonReduction]: Checked pairs total: 435 [2021-04-28 19:56:53,788 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:53,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-04-28 19:56:53,790 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 322 flow [2021-04-28 19:56:53,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 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) [2021-04-28 19:56:53,791 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:53,791 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:53,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:56:53,791 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:53,792 INFO L82 PathProgramCache]: Analyzing trace with hash 219625055, now seen corresponding path program 3 times [2021-04-28 19:56:53,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:53,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788928285] [2021-04-28 19:56:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:53,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:53,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:56:53,901 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-04-28 19:56:53,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:56:53,923 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-04-28 19:56:53,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:56:53,927 INFO L142 QuantifierPusher]: treesize reduction 16, result has 40.7 percent of original size [2021-04-28 19:56:53,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:56:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:53,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788928285] [2021-04-28 19:56:53,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:53,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:56:53,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882668923] [2021-04-28 19:56:53,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:56:53,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:53,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:56:53,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:56:53,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 346 [2021-04-28 19:56:53,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2021-04-28 19:56:53,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:53,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 346 [2021-04-28 19:56:53,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:54,328 INFO L129 PetriNetUnfolder]: 274/638 cut-off events. [2021-04-28 19:56:54,328 INFO L130 PetriNetUnfolder]: For 2938/3675 co-relation queries the response was YES. [2021-04-28 19:56:54,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 638 events. 274/638 cut-off events. For 2938/3675 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4062 event pairs, 29 based on Foata normal form. 49/541 useless extension candidates. Maximal degree in co-relation 2512. Up to 315 conditions per place. [2021-04-28 19:56:54,345 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 17 selfloop transitions, 18 changer transitions 0/79 dead transitions. [2021-04-28 19:56:54,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 475 flow [2021-04-28 19:56:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 19:56:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 19:56:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1341 transitions. [2021-04-28 19:56:54,353 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6459537572254336 [2021-04-28 19:56:54,353 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1341 transitions. [2021-04-28 19:56:54,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1341 transitions. [2021-04-28 19:56:54,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:54,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1341 transitions. [2021-04-28 19:56:54,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 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) [2021-04-28 19:56:54,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 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) [2021-04-28 19:56:54,365 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 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) [2021-04-28 19:56:54,365 INFO L185 Difference]: Start difference. First operand has 77 places, 68 transitions, 322 flow. Second operand 6 states and 1341 transitions. [2021-04-28 19:56:54,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 475 flow [2021-04-28 19:56:54,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 436 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-04-28 19:56:54,373 INFO L241 Difference]: Finished difference. Result has 81 places, 75 transitions, 404 flow [2021-04-28 19:56:54,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2021-04-28 19:56:54,373 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -64 predicate places. [2021-04-28 19:56:54,373 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:54,374 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 75 transitions, 404 flow [2021-04-28 19:56:54,374 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 75 transitions, 404 flow [2021-04-28 19:56:54,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 75 transitions, 404 flow [2021-04-28 19:56:54,469 INFO L129 PetriNetUnfolder]: 147/407 cut-off events. [2021-04-28 19:56:54,469 INFO L130 PetriNetUnfolder]: For 1258/1347 co-relation queries the response was YES. [2021-04-28 19:56:54,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1417 conditions, 407 events. 147/407 cut-off events. For 1258/1347 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2520 event pairs, 37 based on Foata normal form. 6/294 useless extension candidates. Maximal degree in co-relation 1395. Up to 165 conditions per place. [2021-04-28 19:56:54,485 INFO L146 LiptonReduction]: Number of co-enabled transitions 2584 [2021-04-28 19:56:54,496 INFO L158 LiptonReduction]: Checked pairs total: 630 [2021-04-28 19:56:54,496 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:54,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-04-28 19:56:54,498 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 404 flow [2021-04-28 19:56:54,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2021-04-28 19:56:54,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:54,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:54,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:56:54,499 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:54,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:54,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1592198959, now seen corresponding path program 4 times [2021-04-28 19:56:54,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:54,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675200122] [2021-04-28 19:56:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:54,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:54,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:54,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:54,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:56:54,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:54,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:56:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:54,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675200122] [2021-04-28 19:56:54,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:54,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:56:54,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098402782] [2021-04-28 19:56:54,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:56:54,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:54,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:56:54,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:56:54,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 346 [2021-04-28 19:56:54,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 404 flow. Second operand has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2021-04-28 19:56:54,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:54,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 346 [2021-04-28 19:56:54,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:54,986 INFO L129 PetriNetUnfolder]: 269/693 cut-off events. [2021-04-28 19:56:54,986 INFO L130 PetriNetUnfolder]: For 2739/3661 co-relation queries the response was YES. [2021-04-28 19:56:54,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2712 conditions, 693 events. 269/693 cut-off events. For 2739/3661 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4786 event pairs, 15 based on Foata normal form. 49/580 useless extension candidates. Maximal degree in co-relation 2688. Up to 311 conditions per place. [2021-04-28 19:56:55,002 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 27 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2021-04-28 19:56:55,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 545 flow [2021-04-28 19:56:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:56:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:56:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1077 transitions. [2021-04-28 19:56:55,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6225433526011561 [2021-04-28 19:56:55,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1077 transitions. [2021-04-28 19:56:55,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1077 transitions. [2021-04-28 19:56:55,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:55,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1077 transitions. [2021-04-28 19:56:55,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 215.4) internal successors, (1077), 5 states have internal predecessors, (1077), 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) [2021-04-28 19:56:55,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:55,020 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:55,020 INFO L185 Difference]: Start difference. First operand has 81 places, 75 transitions, 404 flow. Second operand 5 states and 1077 transitions. [2021-04-28 19:56:55,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 545 flow [2021-04-28 19:56:55,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 514 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-04-28 19:56:55,027 INFO L241 Difference]: Finished difference. Result has 83 places, 78 transitions, 441 flow [2021-04-28 19:56:55,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=441, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2021-04-28 19:56:55,028 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -62 predicate places. [2021-04-28 19:56:55,028 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:55,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 441 flow [2021-04-28 19:56:55,028 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 78 transitions, 441 flow [2021-04-28 19:56:55,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 441 flow [2021-04-28 19:56:55,123 INFO L129 PetriNetUnfolder]: 140/411 cut-off events. [2021-04-28 19:56:55,123 INFO L130 PetriNetUnfolder]: For 1817/1899 co-relation queries the response was YES. [2021-04-28 19:56:55,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 411 events. 140/411 cut-off events. For 1817/1899 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2588 event pairs, 23 based on Foata normal form. 15/306 useless extension candidates. Maximal degree in co-relation 1493. Up to 161 conditions per place. [2021-04-28 19:56:55,138 INFO L146 LiptonReduction]: Number of co-enabled transitions 2666 [2021-04-28 19:56:55,147 INFO L158 LiptonReduction]: Checked pairs total: 702 [2021-04-28 19:56:55,147 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:55,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-04-28 19:56:55,149 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 441 flow [2021-04-28 19:56:55,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2021-04-28 19:56:55,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:55,150 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:55,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 19:56:55,150 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:55,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1827772800, now seen corresponding path program 1 times [2021-04-28 19:56:55,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:55,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121555778] [2021-04-28 19:56:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:55,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:55,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:55,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:55,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:56:55,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:55,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:56:55,283 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-04-28 19:56:55,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 19:56:55,343 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-04-28 19:56:55,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 19:56:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:55,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121555778] [2021-04-28 19:56:55,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:55,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:56:55,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378662750] [2021-04-28 19:56:55,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:56:55,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:55,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:56:55,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:56:55,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 346 [2021-04-28 19:56:55,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 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) [2021-04-28 19:56:55,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:55,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 346 [2021-04-28 19:56:55,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:55,846 INFO L129 PetriNetUnfolder]: 276/706 cut-off events. [2021-04-28 19:56:55,846 INFO L130 PetriNetUnfolder]: For 3937/5246 co-relation queries the response was YES. [2021-04-28 19:56:55,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3006 conditions, 706 events. 276/706 cut-off events. For 3937/5246 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4919 event pairs, 27 based on Foata normal form. 73/605 useless extension candidates. Maximal degree in co-relation 2981. Up to 342 conditions per place. [2021-04-28 19:56:55,865 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 27 selfloop transitions, 15 changer transitions 0/86 dead transitions. [2021-04-28 19:56:55,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 86 transitions, 592 flow [2021-04-28 19:56:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:56:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:56:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1066 transitions. [2021-04-28 19:56:55,872 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6161849710982659 [2021-04-28 19:56:55,873 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1066 transitions. [2021-04-28 19:56:55,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1066 transitions. [2021-04-28 19:56:55,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:55,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1066 transitions. [2021-04-28 19:56:55,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 213.2) internal successors, (1066), 5 states have internal predecessors, (1066), 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) [2021-04-28 19:56:55,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:55,882 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:55,882 INFO L185 Difference]: Start difference. First operand has 83 places, 78 transitions, 441 flow. Second operand 5 states and 1066 transitions. [2021-04-28 19:56:55,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 86 transitions, 592 flow [2021-04-28 19:56:55,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 563 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-04-28 19:56:55,891 INFO L241 Difference]: Finished difference. Result has 86 places, 80 transitions, 477 flow [2021-04-28 19:56:55,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=477, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2021-04-28 19:56:55,892 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -59 predicate places. [2021-04-28 19:56:55,892 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:55,892 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 477 flow [2021-04-28 19:56:55,892 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 477 flow [2021-04-28 19:56:55,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 477 flow [2021-04-28 19:56:55,987 INFO L129 PetriNetUnfolder]: 143/427 cut-off events. [2021-04-28 19:56:55,987 INFO L130 PetriNetUnfolder]: For 2318/2444 co-relation queries the response was YES. [2021-04-28 19:56:55,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 427 events. 143/427 cut-off events. For 2318/2444 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2742 event pairs, 25 based on Foata normal form. 17/317 useless extension candidates. Maximal degree in co-relation 1622. Up to 168 conditions per place. [2021-04-28 19:56:56,003 INFO L146 LiptonReduction]: Number of co-enabled transitions 2762 [2021-04-28 19:56:56,055 INFO L158 LiptonReduction]: Checked pairs total: 773 [2021-04-28 19:56:56,055 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:56,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-04-28 19:56:56,057 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 477 flow [2021-04-28 19:56:56,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 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) [2021-04-28 19:56:56,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:56,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:56,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 19:56:56,059 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash 275513884, now seen corresponding path program 2 times [2021-04-28 19:56:56,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:56,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662904073] [2021-04-28 19:56:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:56,140 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-04-28 19:56:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:56:56,177 INFO L142 QuantifierPusher]: treesize reduction 15, result has 53.1 percent of original size [2021-04-28 19:56:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 19:56:56,215 INFO L142 QuantifierPusher]: treesize reduction 15, result has 54.5 percent of original size [2021-04-28 19:56:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 19:56:56,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 19:56:56,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:56,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:56:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:56,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662904073] [2021-04-28 19:56:56,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:56,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:56:56,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583596992] [2021-04-28 19:56:56,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:56:56,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:56,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:56:56,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:56:56,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 346 [2021-04-28 19:56:56,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 477 flow. Second operand has 7 states, 7 states have (on average 207.85714285714286) internal successors, (1455), 7 states have internal predecessors, (1455), 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) [2021-04-28 19:56:56,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:56,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 346 [2021-04-28 19:56:56,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:56:57,007 INFO L129 PetriNetUnfolder]: 287/795 cut-off events. [2021-04-28 19:56:57,007 INFO L130 PetriNetUnfolder]: For 4601/5671 co-relation queries the response was YES. [2021-04-28 19:56:57,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3310 conditions, 795 events. 287/795 cut-off events. For 4601/5671 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5887 event pairs, 13 based on Foata normal form. 84/679 useless extension candidates. Maximal degree in co-relation 3284. Up to 315 conditions per place. [2021-04-28 19:56:57,025 INFO L132 encePairwiseOnDemand]: 340/346 looper letters, 29 selfloop transitions, 25 changer transitions 0/98 dead transitions. [2021-04-28 19:56:57,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 98 transitions, 742 flow [2021-04-28 19:56:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:56:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:56:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1057 transitions. [2021-04-28 19:56:57,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6109826589595375 [2021-04-28 19:56:57,033 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1057 transitions. [2021-04-28 19:56:57,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1057 transitions. [2021-04-28 19:56:57,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:56:57,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1057 transitions. [2021-04-28 19:56:57,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 211.4) internal successors, (1057), 5 states have internal predecessors, (1057), 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) [2021-04-28 19:56:57,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:57,043 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:56:57,043 INFO L185 Difference]: Start difference. First operand has 86 places, 80 transitions, 477 flow. Second operand 5 states and 1057 transitions. [2021-04-28 19:56:57,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 98 transitions, 742 flow [2021-04-28 19:56:57,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 98 transitions, 709 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-04-28 19:56:57,053 INFO L241 Difference]: Finished difference. Result has 88 places, 89 transitions, 617 flow [2021-04-28 19:56:57,054 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=617, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2021-04-28 19:56:57,054 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -57 predicate places. [2021-04-28 19:56:57,054 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:56:57,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 89 transitions, 617 flow [2021-04-28 19:56:57,055 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 89 transitions, 617 flow [2021-04-28 19:56:57,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 617 flow [2021-04-28 19:56:57,150 INFO L129 PetriNetUnfolder]: 152/460 cut-off events. [2021-04-28 19:56:57,150 INFO L130 PetriNetUnfolder]: For 2358/2509 co-relation queries the response was YES. [2021-04-28 19:56:57,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 460 events. 152/460 cut-off events. For 2358/2509 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3073 event pairs, 38 based on Foata normal form. 22/346 useless extension candidates. Maximal degree in co-relation 1831. Up to 180 conditions per place. [2021-04-28 19:56:57,166 INFO L146 LiptonReduction]: Number of co-enabled transitions 3074 [2021-04-28 19:56:57,176 INFO L158 LiptonReduction]: Checked pairs total: 1077 [2021-04-28 19:56:57,176 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:56:57,176 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-04-28 19:56:57,177 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 617 flow [2021-04-28 19:56:57,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 207.85714285714286) internal successors, (1455), 7 states have internal predecessors, (1455), 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) [2021-04-28 19:56:57,178 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:56:57,178 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:56:57,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 19:56:57,178 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:56:57,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:56:57,179 INFO L82 PathProgramCache]: Analyzing trace with hash -453444856, now seen corresponding path program 1 times [2021-04-28 19:56:57,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:56:57,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813145904] [2021-04-28 19:56:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:56:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:56:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:56:57,256 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:56:57,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:56:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:56:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:56:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:56:57,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813145904] [2021-04-28 19:56:57,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:56:57,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:56:57,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412881574] [2021-04-28 19:56:57,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:56:57,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:56:57,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:56:57,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:56:57,291 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:56:57,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 617 flow. Second operand has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 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) [2021-04-28 19:56:57,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:56:57,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:56:57,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:57:05,222 INFO L129 PetriNetUnfolder]: 33437/51038 cut-off events. [2021-04-28 19:57:05,222 INFO L130 PetriNetUnfolder]: For 48043/120243 co-relation queries the response was YES. [2021-04-28 19:57:05,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118332 conditions, 51038 events. 33437/51038 cut-off events. For 48043/120243 co-relation queries the response was YES. Maximal size of possible extension queue 10410. Compared 482247 event pairs, 15714 based on Foata normal form. 1455/15166 useless extension candidates. Maximal degree in co-relation 118305. Up to 31417 conditions per place. [2021-04-28 19:57:06,033 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 36 selfloop transitions, 33 changer transitions 0/133 dead transitions. [2021-04-28 19:57:06,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 133 transitions, 843 flow [2021-04-28 19:57:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:57:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:57:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1361 transitions. [2021-04-28 19:57:06,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7867052023121387 [2021-04-28 19:57:06,040 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1361 transitions. [2021-04-28 19:57:06,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1361 transitions. [2021-04-28 19:57:06,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:57:06,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1361 transitions. [2021-04-28 19:57:06,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 272.2) internal successors, (1361), 5 states have internal predecessors, (1361), 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) [2021-04-28 19:57:06,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:57:06,050 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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) [2021-04-28 19:57:06,050 INFO L185 Difference]: Start difference. First operand has 88 places, 89 transitions, 617 flow. Second operand 5 states and 1361 transitions. [2021-04-28 19:57:06,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 133 transitions, 843 flow [2021-04-28 19:57:06,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 133 transitions, 839 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-04-28 19:57:06,123 INFO L241 Difference]: Finished difference. Result has 95 places, 120 transitions, 867 flow [2021-04-28 19:57:06,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=867, PETRI_PLACES=95, PETRI_TRANSITIONS=120} [2021-04-28 19:57:06,124 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -50 predicate places. [2021-04-28 19:57:06,124 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:57:06,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 120 transitions, 867 flow [2021-04-28 19:57:06,125 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 120 transitions, 867 flow [2021-04-28 19:57:06,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 120 transitions, 867 flow [2021-04-28 19:57:11,538 INFO L129 PetriNetUnfolder]: 29426/44371 cut-off events. [2021-04-28 19:57:11,538 INFO L130 PetriNetUnfolder]: For 51746/79125 co-relation queries the response was YES. [2021-04-28 19:57:11,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140055 conditions, 44371 events. 29426/44371 cut-off events. For 51746/79125 co-relation queries the response was YES. Maximal size of possible extension queue 7205. Compared 405919 event pairs, 15400 based on Foata normal form. 268/13767 useless extension candidates. Maximal degree in co-relation 140025. Up to 40148 conditions per place. [2021-04-28 19:57:12,485 INFO L146 LiptonReduction]: Number of co-enabled transitions 4722 [2021-04-28 19:57:12,533 INFO L158 LiptonReduction]: Checked pairs total: 1296 [2021-04-28 19:57:12,534 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:57:12,534 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6410 [2021-04-28 19:57:12,536 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 120 transitions, 867 flow [2021-04-28 19:57:12,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 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) [2021-04-28 19:57:12,536 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:57:12,536 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:57:12,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 19:57:12,537 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:57:12,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:57:12,537 INFO L82 PathProgramCache]: Analyzing trace with hash -766888811, now seen corresponding path program 1 times [2021-04-28 19:57:12,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:57:12,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280533963] [2021-04-28 19:57:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:57:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:57:12,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:12,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:12,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:12,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:12,646 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:57:12,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:57:12,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:12,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:57:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:57:12,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280533963] [2021-04-28 19:57:12,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:57:12,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:57:12,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395109088] [2021-04-28 19:57:12,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:57:12,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:57:12,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:57:12,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:57:12,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:57:12,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 120 transitions, 867 flow. Second operand has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 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) [2021-04-28 19:57:12,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:57:12,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:57:12,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:57:21,192 INFO L129 PetriNetUnfolder]: 34415/56135 cut-off events. [2021-04-28 19:57:21,192 INFO L130 PetriNetUnfolder]: For 102782/4652288 co-relation queries the response was YES. [2021-04-28 19:57:21,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226662 conditions, 56135 events. 34415/56135 cut-off events. For 102782/4652288 co-relation queries the response was YES. Maximal size of possible extension queue 12915. Compared 581593 event pairs, 5670 based on Foata normal form. 1826/18430 useless extension candidates. Maximal degree in co-relation 226630. Up to 49790 conditions per place. [2021-04-28 19:57:21,886 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 37 selfloop transitions, 64 changer transitions 0/163 dead transitions. [2021-04-28 19:57:21,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 163 transitions, 1295 flow [2021-04-28 19:57:21,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:57:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:57:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1909 transitions. [2021-04-28 19:57:21,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7881915772089183 [2021-04-28 19:57:21,895 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1909 transitions. [2021-04-28 19:57:21,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1909 transitions. [2021-04-28 19:57:21,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:57:21,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1909 transitions. [2021-04-28 19:57:21,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 272.7142857142857) internal successors, (1909), 7 states have internal predecessors, (1909), 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) [2021-04-28 19:57:21,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 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) [2021-04-28 19:57:21,909 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 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) [2021-04-28 19:57:21,910 INFO L185 Difference]: Start difference. First operand has 95 places, 120 transitions, 867 flow. Second operand 7 states and 1909 transitions. [2021-04-28 19:57:21,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 163 transitions, 1295 flow [2021-04-28 19:57:22,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 163 transitions, 1291 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-04-28 19:57:22,393 INFO L241 Difference]: Finished difference. Result has 104 places, 149 transitions, 1290 flow [2021-04-28 19:57:22,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=104, PETRI_TRANSITIONS=149} [2021-04-28 19:57:22,394 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -41 predicate places. [2021-04-28 19:57:22,394 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:57:22,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 149 transitions, 1290 flow [2021-04-28 19:57:22,395 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 149 transitions, 1290 flow [2021-04-28 19:57:22,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 149 transitions, 1290 flow [2021-04-28 19:57:28,674 INFO L129 PetriNetUnfolder]: 30819/49847 cut-off events. [2021-04-28 19:57:28,674 INFO L130 PetriNetUnfolder]: For 79677/195698 co-relation queries the response was YES. [2021-04-28 19:57:29,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243037 conditions, 49847 events. 30819/49847 cut-off events. For 79677/195698 co-relation queries the response was YES. Maximal size of possible extension queue 9362. Compared 512702 event pairs, 5815 based on Foata normal form. 234/15266 useless extension candidates. Maximal degree in co-relation 243002. Up to 46073 conditions per place. [2021-04-28 19:57:29,983 INFO L146 LiptonReduction]: Number of co-enabled transitions 6148 [2021-04-28 19:57:30,041 INFO L158 LiptonReduction]: Checked pairs total: 1418 [2021-04-28 19:57:30,042 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:57:30,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7648 [2021-04-28 19:57:30,043 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 149 transitions, 1290 flow [2021-04-28 19:57:30,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 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) [2021-04-28 19:57:30,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:57:30,044 INFO L263 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] [2021-04-28 19:57:30,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 19:57:30,044 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:57:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:57:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1074433379, now seen corresponding path program 1 times [2021-04-28 19:57:30,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:57:30,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102753660] [2021-04-28 19:57:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:57:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:57:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:30,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:30,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:30,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:30,164 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:57:30,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:57:30,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:30,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:57:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:57:30,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102753660] [2021-04-28 19:57:30,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:57:30,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:57:30,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168044985] [2021-04-28 19:57:30,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:57:30,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:57:30,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:57:30,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:57:30,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:57:30,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 149 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 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) [2021-04-28 19:57:30,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:57:30,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:57:30,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:57:40,288 INFO L129 PetriNetUnfolder]: 30401/53183 cut-off events. [2021-04-28 19:57:40,288 INFO L130 PetriNetUnfolder]: For 131455/9123968 co-relation queries the response was YES. [2021-04-28 19:57:40,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304470 conditions, 53183 events. 30401/53183 cut-off events. For 131455/9123968 co-relation queries the response was YES. Maximal size of possible extension queue 13239. Compared 594650 event pairs, 729 based on Foata normal form. 1741/16185 useless extension candidates. Maximal degree in co-relation 304433. Up to 49061 conditions per place. [2021-04-28 19:57:41,230 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 25 selfloop transitions, 95 changer transitions 12/189 dead transitions. [2021-04-28 19:57:41,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 189 transitions, 1901 flow [2021-04-28 19:57:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:57:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:57:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2457 transitions. [2021-04-28 19:57:41,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7890173410404624 [2021-04-28 19:57:41,240 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2457 transitions. [2021-04-28 19:57:41,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2457 transitions. [2021-04-28 19:57:41,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:57:41,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2457 transitions. [2021-04-28 19:57:41,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 273.0) internal successors, (2457), 9 states have internal predecessors, (2457), 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) [2021-04-28 19:57:41,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 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) [2021-04-28 19:57:41,256 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 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) [2021-04-28 19:57:41,256 INFO L185 Difference]: Start difference. First operand has 104 places, 149 transitions, 1290 flow. Second operand 9 states and 2457 transitions. [2021-04-28 19:57:41,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 189 transitions, 1901 flow [2021-04-28 19:57:51,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 189 transitions, 1734 flow, removed 56 selfloop flow, removed 3 redundant places. [2021-04-28 19:57:51,732 INFO L241 Difference]: Finished difference. Result has 112 places, 174 transitions, 1655 flow [2021-04-28 19:57:51,732 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1655, PETRI_PLACES=112, PETRI_TRANSITIONS=174} [2021-04-28 19:57:51,732 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -33 predicate places. [2021-04-28 19:57:51,733 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:57:51,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 174 transitions, 1655 flow [2021-04-28 19:57:51,733 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 174 transitions, 1655 flow [2021-04-28 19:57:51,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 174 transitions, 1655 flow [2021-04-28 19:57:57,361 INFO L129 PetriNetUnfolder]: 22803/41627 cut-off events. [2021-04-28 19:57:57,361 INFO L130 PetriNetUnfolder]: For 178928/242679 co-relation queries the response was YES. [2021-04-28 19:57:57,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244619 conditions, 41627 events. 22803/41627 cut-off events. For 178928/242679 co-relation queries the response was YES. Maximal size of possible extension queue 8441. Compared 484274 event pairs, 811 based on Foata normal form. 112/12155 useless extension candidates. Maximal degree in co-relation 244581. Up to 33283 conditions per place. [2021-04-28 19:57:58,230 INFO L146 LiptonReduction]: Number of co-enabled transitions 6744 [2021-04-28 19:57:58,267 INFO L158 LiptonReduction]: Checked pairs total: 1502 [2021-04-28 19:57:58,268 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:57:58,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6535 [2021-04-28 19:57:58,269 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 174 transitions, 1655 flow [2021-04-28 19:57:58,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 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) [2021-04-28 19:57:58,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:57:58,270 INFO L263 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] [2021-04-28 19:57:58,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 19:57:58,270 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:57:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:57:58,270 INFO L82 PathProgramCache]: Analyzing trace with hash -117888727, now seen corresponding path program 1 times [2021-04-28 19:57:58,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:57:58,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120497939] [2021-04-28 19:57:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:57:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:57:58,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:58,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:57:58,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:57:58,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:57:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:57:58,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120497939] [2021-04-28 19:57:58,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:57:58,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:57:58,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581672686] [2021-04-28 19:57:58,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:57:58,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:57:58,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:57:58,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:57:58,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:57:58,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 174 transitions, 1655 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2021-04-28 19:57:58,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:57:58,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:57:58,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:09,890 INFO L129 PetriNetUnfolder]: 41440/74951 cut-off events. [2021-04-28 19:58:09,890 INFO L130 PetriNetUnfolder]: For 1792943/4949208 co-relation queries the response was YES. [2021-04-28 19:58:10,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442501 conditions, 74951 events. 41440/74951 cut-off events. For 1792943/4949208 co-relation queries the response was YES. Maximal size of possible extension queue 19128. Compared 910906 event pairs, 1377 based on Foata normal form. 570/20414 useless extension candidates. Maximal degree in co-relation 442461. Up to 60454 conditions per place. [2021-04-28 19:58:11,193 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/174 dead transitions. [2021-04-28 19:58:11,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 174 transitions, 1667 flow [2021-04-28 19:58:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2021-04-28 19:58:11,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7225433526011561 [2021-04-28 19:58:11,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2021-04-28 19:58:11,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2021-04-28 19:58:11,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:11,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2021-04-28 19:58:11,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2021-04-28 19:58:11,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:58:11,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2021-04-28 19:58:11,205 INFO L185 Difference]: Start difference. First operand has 112 places, 174 transitions, 1655 flow. Second operand 3 states and 750 transitions. [2021-04-28 19:58:11,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 174 transitions, 1667 flow [2021-04-28 20:02:47,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 174 transitions, 1335 flow, removed 108 selfloop flow, removed 5 redundant places. [2021-04-28 20:02:47,381 INFO L241 Difference]: Finished difference. Result has 110 places, 174 transitions, 1334 flow [2021-04-28 20:02:47,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1323, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=110, PETRI_TRANSITIONS=174} [2021-04-28 20:02:47,382 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -35 predicate places. [2021-04-28 20:02:47,382 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:02:47,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 174 transitions, 1334 flow [2021-04-28 20:02:47,383 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 174 transitions, 1334 flow [2021-04-28 20:02:47,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 174 transitions, 1334 flow [2021-04-28 20:02:56,336 INFO L129 PetriNetUnfolder]: 41458/74959 cut-off events. [2021-04-28 20:02:56,336 INFO L130 PetriNetUnfolder]: For 106143/118538 co-relation queries the response was YES. [2021-04-28 20:02:56,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276862 conditions, 74959 events. 41458/74959 cut-off events. For 106143/118538 co-relation queries the response was YES. Maximal size of possible extension queue 16453. Compared 910518 event pairs, 1487 based on Foata normal form. 192/21764 useless extension candidates. Maximal degree in co-relation 276824. Up to 37855 conditions per place. [2021-04-28 20:02:58,136 INFO L146 LiptonReduction]: Number of co-enabled transitions 6742 [2021-04-28 20:02:58,191 INFO L158 LiptonReduction]: Checked pairs total: 1502 [2021-04-28 20:02:58,191 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:02:58,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10809 [2021-04-28 20:02:58,193 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 174 transitions, 1334 flow [2021-04-28 20:02:58,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2021-04-28 20:02:58,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:02:58,193 INFO L263 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] [2021-04-28 20:02:58,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-28 20:02:58,193 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:02:58,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:02:58,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1051920474, now seen corresponding path program 1 times [2021-04-28 20:02:58,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:02:58,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823648548] [2021-04-28 20:02:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:02:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:02:58,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:02:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:02:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:02:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:02:58,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:02:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:02:58,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:02:58,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:02:58,333 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:02:58,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:02:58,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:02:58,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:02:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:02:58,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823648548] [2021-04-28 20:02:58,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:02:58,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 20:02:58,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345953532] [2021-04-28 20:02:58,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:02:58,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:02:58,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:02:58,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:02:58,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 20:02:58,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 174 transitions, 1334 flow. Second operand has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 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) [2021-04-28 20:02:58,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:02:58,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 20:02:58,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:03:11,348 INFO L129 PetriNetUnfolder]: 42502/76616 cut-off events. [2021-04-28 20:03:11,349 INFO L130 PetriNetUnfolder]: For 145089/3863781 co-relation queries the response was YES. [2021-04-28 20:03:12,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343628 conditions, 76616 events. 42502/76616 cut-off events. For 145089/3863781 co-relation queries the response was YES. Maximal size of possible extension queue 19899. Compared 916375 event pairs, 0 based on Foata normal form. 1729/21935 useless extension candidates. Maximal degree in co-relation 343588. Up to 41472 conditions per place. [2021-04-28 20:03:12,460 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 6 selfloop transitions, 113 changer transitions 20/195 dead transitions. [2021-04-28 20:03:12,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 195 transitions, 1797 flow [2021-04-28 20:03:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:03:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:03:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2981 transitions. [2021-04-28 20:03:12,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7832369942196532 [2021-04-28 20:03:12,471 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2981 transitions. [2021-04-28 20:03:12,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2981 transitions. [2021-04-28 20:03:12,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:03:12,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2981 transitions. [2021-04-28 20:03:12,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 271.0) internal successors, (2981), 11 states have internal predecessors, (2981), 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) [2021-04-28 20:03:12,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 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) [2021-04-28 20:03:12,487 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 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) [2021-04-28 20:03:12,488 INFO L185 Difference]: Start difference. First operand has 110 places, 174 transitions, 1334 flow. Second operand 11 states and 2981 transitions. [2021-04-28 20:03:12,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 195 transitions, 1797 flow [2021-04-28 20:06:07,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 195 transitions, 1711 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-04-28 20:06:07,501 INFO L241 Difference]: Finished difference. Result has 117 places, 172 transitions, 1506 flow [2021-04-28 20:06:07,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1506, PETRI_PLACES=117, PETRI_TRANSITIONS=172} [2021-04-28 20:06:07,502 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -28 predicate places. [2021-04-28 20:06:07,502 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:06:07,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 172 transitions, 1506 flow [2021-04-28 20:06:07,502 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 172 transitions, 1506 flow [2021-04-28 20:06:07,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 172 transitions, 1506 flow [2021-04-28 20:06:15,337 INFO L129 PetriNetUnfolder]: 35743/66247 cut-off events. [2021-04-28 20:06:15,337 INFO L130 PetriNetUnfolder]: For 476193/740126 co-relation queries the response was YES. [2021-04-28 20:06:15,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294657 conditions, 66247 events. 35743/66247 cut-off events. For 476193/740126 co-relation queries the response was YES. Maximal size of possible extension queue 15755. Compared 841824 event pairs, 0 based on Foata normal form. 35/17636 useless extension candidates. Maximal degree in co-relation 294618. Up to 41472 conditions per place. [2021-04-28 20:06:16,963 INFO L146 LiptonReduction]: Number of co-enabled transitions 6642 [2021-04-28 20:06:18,887 INFO L158 LiptonReduction]: Checked pairs total: 1681 [2021-04-28 20:06:18,887 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:06:18,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11385 [2021-04-28 20:06:18,890 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 172 transitions, 1506 flow [2021-04-28 20:06:18,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 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) [2021-04-28 20:06:18,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:06:18,891 INFO L263 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] [2021-04-28 20:06:18,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-28 20:06:18,891 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:06:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:06:18,892 INFO L82 PathProgramCache]: Analyzing trace with hash 216620598, now seen corresponding path program 1 times [2021-04-28 20:06:18,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:06:18,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644466905] [2021-04-28 20:06:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:06:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:06:19,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:06:19,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:06:19,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:06:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:06:19,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:06:19,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:06:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:06:19,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644466905] [2021-04-28 20:06:19,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:06:19,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:06:19,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109111517] [2021-04-28 20:06:19,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:06:19,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:06:19,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:06:19,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:06:19,043 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 346 [2021-04-28 20:06:19,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 172 transitions, 1506 flow. Second operand has 4 states, 4 states have (on average 243.0) internal successors, (972), 4 states have internal predecessors, (972), 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) [2021-04-28 20:06:19,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:06:19,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 346 [2021-04-28 20:06:19,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:06:37,619 INFO L129 PetriNetUnfolder]: 71877/133281 cut-off events. [2021-04-28 20:06:37,619 INFO L130 PetriNetUnfolder]: For 2394991/3762946 co-relation queries the response was YES. [2021-04-28 20:06:38,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 593419 conditions, 133281 events. 71877/133281 cut-off events. For 2394991/3762946 co-relation queries the response was YES. Maximal size of possible extension queue 34197. Compared 1782052 event pairs, 0 based on Foata normal form. 148/33494 useless extension candidates. Maximal degree in co-relation 593378. Up to 82944 conditions per place. [2021-04-28 20:06:39,291 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 3 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2021-04-28 20:06:39,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 173 transitions, 1518 flow [2021-04-28 20:06:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:06:39,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:06:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 974 transitions. [2021-04-28 20:06:39,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.703757225433526 [2021-04-28 20:06:39,298 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 974 transitions. [2021-04-28 20:06:39,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 974 transitions. [2021-04-28 20:06:39,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:06:39,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 974 transitions. [2021-04-28 20:06:39,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 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) [2021-04-28 20:06:39,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 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) [2021-04-28 20:06:39,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 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) [2021-04-28 20:06:39,305 INFO L185 Difference]: Start difference. First operand has 115 places, 172 transitions, 1506 flow. Second operand 4 states and 974 transitions. [2021-04-28 20:06:39,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 173 transitions, 1518 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown