/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/safe029_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:37:02,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:37:02,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:37:02,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:37:02,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:37:02,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:37:02,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:37:02,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:37:02,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:37:02,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:37:02,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:37:02,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:37:02,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:37:02,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:37:02,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:37:02,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:37:02,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:37:02,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:37:02,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:37:02,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:37:02,857 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 [2021-04-29 00:37:02,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:37:02,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:37:02,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:37:02,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:37:02,919 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:37:02,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:37:02,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:37:02,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:37:02,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:37:02,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:37:02,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:37:02,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:37:02,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:37:02,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:37:02,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:37:02,924 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:37:02,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:37:02,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:37:02,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:37:02,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:37:02,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:37:02,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:37:02,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:37:02,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:37:02,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:37:02,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:37:02,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:37:02,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:37:02,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:37:02,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:37:02,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:37:03,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:37:03,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:37:03,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:37:03,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:37:03,394 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:37:03,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_rmo.oepc.i [2021-04-29 00:37:03,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55644d1c/e159a9b2e9e445f4af3ddfa56d448fbc/FLAG4a137be06 [2021-04-29 00:37:04,212 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:37:04,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_rmo.oepc.i [2021-04-29 00:37:04,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55644d1c/e159a9b2e9e445f4af3ddfa56d448fbc/FLAG4a137be06 [2021-04-29 00:37:04,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55644d1c/e159a9b2e9e445f4af3ddfa56d448fbc [2021-04-29 00:37:04,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:37:04,573 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:37:04,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:04,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:37:04,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:37:04,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:04" (1/1) ... [2021-04-29 00:37:04,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371c03b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:04, skipping insertion in model container [2021-04-29 00:37:04,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:04" (1/1) ... [2021-04-29 00:37:04,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:37:04,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:37:04,910 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/safe029_rmo.oepc.i[950,963] [2021-04-29 00:37:05,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:05,144 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:37:05,163 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/safe029_rmo.oepc.i[950,963] [2021-04-29 00:37:05,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:05,473 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:37:05,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05 WrapperNode [2021-04-29 00:37:05,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:05,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:05,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:37:05,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:37:05,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:05,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:37:05,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:37:05,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:37:05,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (1/1) ... [2021-04-29 00:37:05,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:37:05,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:37:05,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:37:05,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:37:05,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (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 [2021-04-29 00:37:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:37:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:37:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:37:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:37:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:37:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:37:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:37:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:37:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:37:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:37:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:37:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:37:05,745 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:37:07,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:37:07,940 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-29 00:37:07,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:07 BoogieIcfgContainer [2021-04-29 00:37:07,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:37:07,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:37:07,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:37:07,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:37:07,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:37:04" (1/3) ... [2021-04-29 00:37:07,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264f662d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:07, skipping insertion in model container [2021-04-29 00:37:07,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:05" (2/3) ... [2021-04-29 00:37:07,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264f662d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:07, skipping insertion in model container [2021-04-29 00:37:07,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:07" (3/3) ... [2021-04-29 00:37:07,953 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_rmo.oepc.i [2021-04-29 00:37:07,960 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:37:07,965 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-29 00:37:07,966 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:37:08,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,002 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,002 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,002 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,014 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,014 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,014 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,014 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,022 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:08,025 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:37:08,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:37:08,076 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:37:08,077 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:37:08,077 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:37:08,077 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:37:08,077 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:37:08,077 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:37:08,077 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:37:08,078 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:37:08,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 168 flow [2021-04-29 00:37:08,133 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2021-04-29 00:37:08,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:08,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-04-29 00:37:08,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 79 transitions, 168 flow [2021-04-29 00:37:08,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 160 flow [2021-04-29 00:37:08,145 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:08,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 77 transitions, 160 flow [2021-04-29 00:37:08,167 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 77 transitions, 160 flow [2021-04-29 00:37:08,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 77 transitions, 160 flow [2021-04-29 00:37:08,189 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2021-04-29 00:37:08,189 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:08,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-04-29 00:37:08,193 INFO L146 LiptonReduction]: Number of co-enabled transitions 926 [2021-04-29 00:37:10,245 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2021-04-29 00:37:10,778 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-29 00:37:13,085 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 308 DAG size of output: 264 [2021-04-29 00:37:14,113 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:37:16,208 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-29 00:37:16,331 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-29 00:37:16,919 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-29 00:37:17,146 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:37:19,626 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-29 00:37:20,202 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-29 00:37:21,357 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-29 00:37:22,536 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-29 00:37:23,667 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-04-29 00:37:24,258 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-04-29 00:37:26,659 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 263 DAG size of output: 262 [2021-04-29 00:37:27,871 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 262 [2021-04-29 00:37:28,500 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-29 00:37:29,122 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-04-29 00:37:30,359 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:37:31,712 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:37:34,111 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2021-04-29 00:37:34,773 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-04-29 00:37:36,148 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:37:37,494 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:37:38,868 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2021-04-29 00:37:39,581 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:37:41,000 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:37:42,406 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:37:43,112 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:37:43,835 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:37:45,304 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-29 00:37:46,794 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-29 00:37:47,565 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-29 00:37:48,359 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-29 00:37:49,889 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:37:51,430 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:37:53,081 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:37:53,342 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:37:53,554 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:53,760 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:53,977 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:54,182 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:54,413 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:37:54,645 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:37:55,924 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:37:56,661 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:37:58,231 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-29 00:37:59,798 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 263 [2021-04-29 00:38:01,284 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2021-04-29 00:38:02,007 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-04-29 00:38:03,524 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:38:04,984 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 261 [2021-04-29 00:38:06,415 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2021-04-29 00:38:07,163 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-04-29 00:38:08,707 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:38:10,258 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-29 00:38:11,366 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:38:11,592 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:38:11,841 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:38:12,106 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:38:12,404 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:38:12,729 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:38:12,834 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-29 00:38:13,033 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:38:13,302 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:38:13,590 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:38:13,890 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:38:15,601 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:38:15,707 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 00:38:15,945 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:38:16,058 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 00:38:16,330 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:38:16,446 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 00:38:16,707 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:38:16,823 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 00:38:17,054 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:38:17,387 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:38:17,492 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:38:17,664 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:38:17,929 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:38:18,226 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:38:18,537 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:38:18,787 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:38:19,011 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:38:19,288 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 00:38:19,477 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 00:38:19,663 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 00:38:19,843 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 00:38:20,002 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:38:20,169 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:38:20,317 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:38:20,470 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:38:20,677 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:20,890 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:21,097 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:21,305 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:21,521 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:21,732 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:21,939 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:22,154 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:22,304 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:22,448 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:22,591 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:22,731 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:22,931 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:23,132 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:23,339 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:23,541 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:24,089 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 00:38:24,363 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 00:38:24,917 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 00:38:25,177 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 00:38:25,311 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:38:25,448 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:38:25,589 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:38:25,727 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:38:25,935 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 00:38:26,137 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 00:38:26,338 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 00:38:26,535 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 00:38:26,718 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:38:26,904 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:38:27,096 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:38:27,288 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:38:27,464 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:38:27,642 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:38:27,814 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:38:27,996 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:38:28,202 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 00:38:28,413 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 00:38:28,612 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 00:38:28,806 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 00:38:28,978 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:38:29,139 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:38:29,310 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:38:29,471 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-29 00:38:30,050 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 00:38:30,325 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-29 00:38:30,939 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 00:38:31,269 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-29 00:38:31,410 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 00:38:31,544 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 00:38:31,701 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 00:38:31,858 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 00:38:32,021 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:32,185 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:32,334 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:32,490 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 00:38:32,638 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:38:32,783 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:38:32,938 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:38:33,088 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:38:33,302 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:33,512 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:33,725 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:33,949 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 00:38:34,004 INFO L158 LiptonReduction]: Checked pairs total: 8042 [2021-04-29 00:38:34,005 INFO L160 LiptonReduction]: Total number of compositions: 172 [2021-04-29 00:38:34,009 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85865 [2021-04-29 00:38:34,028 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-29 00:38:34,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:38:34,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:34,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 00:38:34,030 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:34,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1005452, now seen corresponding path program 1 times [2021-04-29 00:38:34,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:34,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105072933] [2021-04-29 00:38:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:34,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:34,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:34,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105072933] [2021-04-29 00:38:34,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:34,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:38:34,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657212433] [2021-04-29 00:38:34,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:38:34,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:34,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:38:34,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:38:34,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 251 [2021-04-29 00:38:34,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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) [2021-04-29 00:38:34,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:34,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 251 [2021-04-29 00:38:34,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:34,776 INFO L129 PetriNetUnfolder]: 107/321 cut-off events. [2021-04-29 00:38:34,776 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:38:34,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 321 events. 107/321 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2092 event pairs, 76 based on Foata normal form. 6/149 useless extension candidates. Maximal degree in co-relation 482. Up to 157 conditions per place. [2021-04-29 00:38:34,780 INFO L132 encePairwiseOnDemand]: 235/251 looper letters, 7 selfloop transitions, 2 changer transitions 76/109 dead transitions. [2021-04-29 00:38:34,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 312 flow [2021-04-29 00:38:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:38:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:38:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2021-04-29 00:38:34,803 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8061088977423638 [2021-04-29 00:38:34,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2021-04-29 00:38:34,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2021-04-29 00:38:34,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:34,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2021-04-29 00:38:34,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2021-04-29 00:38:34,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:34,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:34,830 INFO L185 Difference]: Start difference. First operand has 103 places, 98 transitions, 202 flow. Second operand 3 states and 607 transitions. [2021-04-29 00:38:34,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 312 flow [2021-04-29 00:38:34,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 109 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:38:34,838 INFO L241 Difference]: Finished difference. Result has 100 places, 30 transitions, 68 flow [2021-04-29 00:38:34,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=100, PETRI_TRANSITIONS=30} [2021-04-29 00:38:34,842 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -3 predicate places. [2021-04-29 00:38:34,842 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:34,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 30 transitions, 68 flow [2021-04-29 00:38:34,843 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 30 transitions, 68 flow [2021-04-29 00:38:34,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2021-04-29 00:38:34,849 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-04-29 00:38:34,849 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:38:34,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 104 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 00:38:34,850 INFO L146 LiptonReduction]: Number of co-enabled transitions 462 [2021-04-29 00:38:35,386 INFO L158 LiptonReduction]: Checked pairs total: 414 [2021-04-29 00:38:35,386 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:35,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 545 [2021-04-29 00:38:35,388 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 68 flow [2021-04-29 00:38:35,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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) [2021-04-29 00:38:35,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:35,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:35,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:38:35,391 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash 907191905, now seen corresponding path program 1 times [2021-04-29 00:38:35,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:35,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103613015] [2021-04-29 00:38:35,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:35,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:35,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:35,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103613015] [2021-04-29 00:38:35,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:35,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:38:35,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638984032] [2021-04-29 00:38:35,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:38:35,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:35,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:38:35,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:38:35,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 251 [2021-04-29 00:38:35,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-04-29 00:38:35,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:35,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 251 [2021-04-29 00:38:35,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:35,612 INFO L129 PetriNetUnfolder]: 3/46 cut-off events. [2021-04-29 00:38:35,613 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:38:35,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 46 events. 3/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 151 event pairs, 1 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 56. Up to 10 conditions per place. [2021-04-29 00:38:35,616 INFO L132 encePairwiseOnDemand]: 247/251 looper letters, 3 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2021-04-29 00:38:35,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 84 flow [2021-04-29 00:38:35,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:38:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:38:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 529 transitions. [2021-04-29 00:38:35,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.702523240371846 [2021-04-29 00:38:35,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 529 transitions. [2021-04-29 00:38:35,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 529 transitions. [2021-04-29 00:38:35,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:35,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 529 transitions. [2021-04-29 00:38:35,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2021-04-29 00:38:35,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:35,634 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 68 flow. Second operand 3 states and 529 transitions. [2021-04-29 00:38:35,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 84 flow [2021-04-29 00:38:35,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:38:35,636 INFO L241 Difference]: Finished difference. Result has 38 places, 32 transitions, 83 flow [2021-04-29 00:38:35,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2021-04-29 00:38:35,637 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -65 predicate places. [2021-04-29 00:38:35,637 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:35,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 83 flow [2021-04-29 00:38:35,637 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 83 flow [2021-04-29 00:38:35,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 83 flow [2021-04-29 00:38:35,645 INFO L129 PetriNetUnfolder]: 3/44 cut-off events. [2021-04-29 00:38:35,646 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:38:35,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 44 events. 3/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 158 event pairs, 1 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 55. Up to 10 conditions per place. [2021-04-29 00:38:35,647 INFO L146 LiptonReduction]: Number of co-enabled transitions 500 [2021-04-29 00:38:35,727 INFO L158 LiptonReduction]: Checked pairs total: 368 [2021-04-29 00:38:35,728 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:35,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-29 00:38:35,729 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 83 flow [2021-04-29 00:38:35,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-04-29 00:38:35,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:35,730 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:35,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:38:35,731 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:35,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1941823633, now seen corresponding path program 1 times [2021-04-29 00:38:35,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:35,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084112773] [2021-04-29 00:38:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:35,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 00:38:35,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:35,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:35,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084112773] [2021-04-29 00:38:35,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:35,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:38:35,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816725127] [2021-04-29 00:38:35,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:38:35,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:35,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:38:35,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:38:35,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 251 [2021-04-29 00:38:35,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2021-04-29 00:38:35,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:35,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 251 [2021-04-29 00:38:35,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:35,969 INFO L129 PetriNetUnfolder]: 36/128 cut-off events. [2021-04-29 00:38:35,970 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:38:35,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 128 events. 36/128 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 600 event pairs, 24 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 216. Up to 64 conditions per place. [2021-04-29 00:38:35,972 INFO L132 encePairwiseOnDemand]: 247/251 looper letters, 7 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2021-04-29 00:38:35,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 109 flow [2021-04-29 00:38:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:38:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:38:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2021-04-29 00:38:35,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6122177954847278 [2021-04-29 00:38:35,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 461 transitions. [2021-04-29 00:38:35,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 461 transitions. [2021-04-29 00:38:35,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:35,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 461 transitions. [2021-04-29 00:38:35,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2021-04-29 00:38:35,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:35,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:35,982 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 83 flow. Second operand 3 states and 461 transitions. [2021-04-29 00:38:35,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 109 flow [2021-04-29 00:38:35,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:38:35,985 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 99 flow [2021-04-29 00:38:35,985 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2021-04-29 00:38:35,985 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -63 predicate places. [2021-04-29 00:38:35,985 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:35,985 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 34 transitions, 99 flow [2021-04-29 00:38:35,986 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 34 transitions, 99 flow [2021-04-29 00:38:35,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 34 transitions, 99 flow [2021-04-29 00:38:35,995 INFO L129 PetriNetUnfolder]: 7/57 cut-off events. [2021-04-29 00:38:35,995 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-04-29 00:38:35,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 57 events. 7/57 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 234 event pairs, 3 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 85. Up to 15 conditions per place. [2021-04-29 00:38:35,996 INFO L146 LiptonReduction]: Number of co-enabled transitions 538 [2021-04-29 00:38:36,100 INFO L158 LiptonReduction]: Checked pairs total: 294 [2021-04-29 00:38:36,101 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:36,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-04-29 00:38:36,102 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 99 flow [2021-04-29 00:38:36,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2021-04-29 00:38:36,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:36,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:36,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:38:36,104 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:36,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:36,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1765180512, now seen corresponding path program 1 times [2021-04-29 00:38:36,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:36,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841370489] [2021-04-29 00:38:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:36,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:36,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:38:36,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:36,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:36,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841370489] [2021-04-29 00:38:36,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:36,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:38:36,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999387789] [2021-04-29 00:38:36,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:38:36,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:36,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:38:36,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:38:36,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 251 [2021-04-29 00:38:36,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2021-04-29 00:38:36,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:36,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 251 [2021-04-29 00:38:36,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:36,291 INFO L129 PetriNetUnfolder]: 4/67 cut-off events. [2021-04-29 00:38:36,292 INFO L130 PetriNetUnfolder]: For 21/28 co-relation queries the response was YES. [2021-04-29 00:38:36,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 67 events. 4/67 cut-off events. For 21/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 302 event pairs, 2 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 102. Up to 14 conditions per place. [2021-04-29 00:38:36,293 INFO L132 encePairwiseOnDemand]: 248/251 looper letters, 3 selfloop transitions, 3 changer transitions 1/34 dead transitions. [2021-04-29 00:38:36,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 111 flow [2021-04-29 00:38:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:38:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:38:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2021-04-29 00:38:36,297 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.701195219123506 [2021-04-29 00:38:36,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2021-04-29 00:38:36,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2021-04-29 00:38:36,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:36,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2021-04-29 00:38:36,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2021-04-29 00:38:36,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:36,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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) [2021-04-29 00:38:36,303 INFO L185 Difference]: Start difference. First operand has 40 places, 34 transitions, 99 flow. Second operand 3 states and 528 transitions. [2021-04-29 00:38:36,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 111 flow [2021-04-29 00:38:36,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:38:36,306 INFO L241 Difference]: Finished difference. Result has 42 places, 33 transitions, 105 flow [2021-04-29 00:38:36,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2021-04-29 00:38:36,306 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -61 predicate places. [2021-04-29 00:38:36,306 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:36,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 33 transitions, 105 flow [2021-04-29 00:38:36,307 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 33 transitions, 105 flow [2021-04-29 00:38:36,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 33 transitions, 105 flow [2021-04-29 00:38:36,317 INFO L129 PetriNetUnfolder]: 4/66 cut-off events. [2021-04-29 00:38:36,318 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-04-29 00:38:36,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 66 events. 4/66 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 295 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 99. Up to 14 conditions per place. [2021-04-29 00:38:36,319 INFO L146 LiptonReduction]: Number of co-enabled transitions 500 [2021-04-29 00:38:36,322 INFO L158 LiptonReduction]: Checked pairs total: 285 [2021-04-29 00:38:36,322 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:36,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:38:36,323 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 105 flow [2021-04-29 00:38:36,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2021-04-29 00:38:36,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:36,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:36,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:38:36,325 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:36,325 INFO L82 PathProgramCache]: Analyzing trace with hash -66992343, now seen corresponding path program 1 times [2021-04-29 00:38:36,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:36,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067103919] [2021-04-29 00:38:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:36,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:36,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-29 00:38:36,462 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-29 00:38:36,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:36,483 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-29 00:38:36,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:36,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067103919] [2021-04-29 00:38:36,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:36,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:38:36,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987371595] [2021-04-29 00:38:36,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:38:36,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:36,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:38:36,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:38:36,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 251 [2021-04-29 00:38:36,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 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) [2021-04-29 00:38:36,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:36,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 251 [2021-04-29 00:38:36,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:36,623 INFO L129 PetriNetUnfolder]: 35/145 cut-off events. [2021-04-29 00:38:36,624 INFO L130 PetriNetUnfolder]: For 75/80 co-relation queries the response was YES. [2021-04-29 00:38:36,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 145 events. 35/145 cut-off events. For 75/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 759 event pairs, 6 based on Foata normal form. 4/108 useless extension candidates. Maximal degree in co-relation 283. Up to 70 conditions per place. [2021-04-29 00:38:36,626 INFO L132 encePairwiseOnDemand]: 246/251 looper letters, 8 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2021-04-29 00:38:36,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 141 flow [2021-04-29 00:38:36,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:38:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:38:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 598 transitions. [2021-04-29 00:38:36,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5956175298804781 [2021-04-29 00:38:36,631 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 598 transitions. [2021-04-29 00:38:36,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 598 transitions. [2021-04-29 00:38:36,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:36,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 598 transitions. [2021-04-29 00:38:36,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.5) internal successors, (598), 4 states have internal predecessors, (598), 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) [2021-04-29 00:38:36,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:36,638 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:36,638 INFO L185 Difference]: Start difference. First operand has 41 places, 33 transitions, 105 flow. Second operand 4 states and 598 transitions. [2021-04-29 00:38:36,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 141 flow [2021-04-29 00:38:36,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 136 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:38:36,640 INFO L241 Difference]: Finished difference. Result has 44 places, 35 transitions, 125 flow [2021-04-29 00:38:36,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2021-04-29 00:38:36,641 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -59 predicate places. [2021-04-29 00:38:36,641 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:36,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 125 flow [2021-04-29 00:38:36,641 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 125 flow [2021-04-29 00:38:36,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 125 flow [2021-04-29 00:38:36,652 INFO L129 PetriNetUnfolder]: 6/71 cut-off events. [2021-04-29 00:38:36,652 INFO L130 PetriNetUnfolder]: For 36/40 co-relation queries the response was YES. [2021-04-29 00:38:36,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 71 events. 6/71 cut-off events. For 36/40 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 323 event pairs, 1 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 125. Up to 17 conditions per place. [2021-04-29 00:38:36,654 INFO L146 LiptonReduction]: Number of co-enabled transitions 540 [2021-04-29 00:38:36,656 INFO L158 LiptonReduction]: Checked pairs total: 171 [2021-04-29 00:38:36,657 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:36,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:38:36,658 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 125 flow [2021-04-29 00:38:36,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 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) [2021-04-29 00:38:36,659 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:36,659 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:36,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:38:36,660 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:36,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:36,660 INFO L82 PathProgramCache]: Analyzing trace with hash -66993087, now seen corresponding path program 1 times [2021-04-29 00:38:36,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:36,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662705936] [2021-04-29 00:38:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:36,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:36,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:36,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:36,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662705936] [2021-04-29 00:38:36,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:36,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:38:36,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993605986] [2021-04-29 00:38:36,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:38:36,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:36,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:38:36,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:38:36,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 251 [2021-04-29 00:38:36,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2021-04-29 00:38:36,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:36,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 251 [2021-04-29 00:38:36,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:36,923 INFO L129 PetriNetUnfolder]: 36/138 cut-off events. [2021-04-29 00:38:36,923 INFO L130 PetriNetUnfolder]: For 127/137 co-relation queries the response was YES. [2021-04-29 00:38:36,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 138 events. 36/138 cut-off events. For 127/137 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 661 event pairs, 16 based on Foata normal form. 5/104 useless extension candidates. Maximal degree in co-relation 316. Up to 65 conditions per place. [2021-04-29 00:38:36,925 INFO L132 encePairwiseOnDemand]: 245/251 looper letters, 10 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2021-04-29 00:38:36,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 181 flow [2021-04-29 00:38:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:38:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:38:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2021-04-29 00:38:36,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6125498007968128 [2021-04-29 00:38:36,930 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 615 transitions. [2021-04-29 00:38:36,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 615 transitions. [2021-04-29 00:38:36,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:36,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 615 transitions. [2021-04-29 00:38:36,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.75) internal successors, (615), 4 states have internal predecessors, (615), 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) [2021-04-29 00:38:36,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:36,939 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:36,939 INFO L185 Difference]: Start difference. First operand has 44 places, 35 transitions, 125 flow. Second operand 4 states and 615 transitions. [2021-04-29 00:38:36,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 181 flow [2021-04-29 00:38:36,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 172 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 00:38:36,943 INFO L241 Difference]: Finished difference. Result has 46 places, 38 transitions, 148 flow [2021-04-29 00:38:36,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2021-04-29 00:38:36,943 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -57 predicate places. [2021-04-29 00:38:36,944 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:36,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 38 transitions, 148 flow [2021-04-29 00:38:36,945 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 38 transitions, 148 flow [2021-04-29 00:38:36,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 38 transitions, 148 flow [2021-04-29 00:38:36,973 INFO L129 PetriNetUnfolder]: 19/117 cut-off events. [2021-04-29 00:38:36,973 INFO L130 PetriNetUnfolder]: For 144/153 co-relation queries the response was YES. [2021-04-29 00:38:36,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 117 events. 19/117 cut-off events. For 144/153 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 619 event pairs, 6 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 243. Up to 28 conditions per place. [2021-04-29 00:38:36,976 INFO L146 LiptonReduction]: Number of co-enabled transitions 578 [2021-04-29 00:38:36,982 INFO L158 LiptonReduction]: Checked pairs total: 42 [2021-04-29 00:38:36,982 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:36,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 00:38:36,986 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 148 flow [2021-04-29 00:38:36,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2021-04-29 00:38:36,987 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:36,987 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:36,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:38:36,988 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:36,988 INFO L82 PathProgramCache]: Analyzing trace with hash -103151487, now seen corresponding path program 2 times [2021-04-29 00:38:36,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:36,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539729725] [2021-04-29 00:38:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:37,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:37,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:38:37,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-29 00:38:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:37,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539729725] [2021-04-29 00:38:37,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:37,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:38:37,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336406344] [2021-04-29 00:38:37,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:38:37,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:37,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:38:37,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:38:37,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 251 [2021-04-29 00:38:37,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 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) [2021-04-29 00:38:37,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:37,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 251 [2021-04-29 00:38:37,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:37,352 INFO L129 PetriNetUnfolder]: 33/139 cut-off events. [2021-04-29 00:38:37,352 INFO L130 PetriNetUnfolder]: For 138/146 co-relation queries the response was YES. [2021-04-29 00:38:37,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 139 events. 33/139 cut-off events. For 138/146 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 696 event pairs, 6 based on Foata normal form. 6/106 useless extension candidates. Maximal degree in co-relation 343. Up to 63 conditions per place. [2021-04-29 00:38:37,354 INFO L132 encePairwiseOnDemand]: 245/251 looper letters, 9 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2021-04-29 00:38:37,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 188 flow [2021-04-29 00:38:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:38:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:38:37,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 606 transitions. [2021-04-29 00:38:37,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.603585657370518 [2021-04-29 00:38:37,360 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 606 transitions. [2021-04-29 00:38:37,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 606 transitions. [2021-04-29 00:38:37,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:37,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 606 transitions. [2021-04-29 00:38:37,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2021-04-29 00:38:37,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:37,366 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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) [2021-04-29 00:38:37,366 INFO L185 Difference]: Start difference. First operand has 46 places, 38 transitions, 148 flow. Second operand 4 states and 606 transitions. [2021-04-29 00:38:37,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 188 flow [2021-04-29 00:38:37,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 182 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:38:37,369 INFO L241 Difference]: Finished difference. Result has 49 places, 38 transitions, 164 flow [2021-04-29 00:38:37,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2021-04-29 00:38:37,370 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -54 predicate places. [2021-04-29 00:38:37,370 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:37,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 38 transitions, 164 flow [2021-04-29 00:38:37,371 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 38 transitions, 164 flow [2021-04-29 00:38:37,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 38 transitions, 164 flow [2021-04-29 00:38:37,390 INFO L129 PetriNetUnfolder]: 18/108 cut-off events. [2021-04-29 00:38:37,390 INFO L130 PetriNetUnfolder]: For 151/158 co-relation queries the response was YES. [2021-04-29 00:38:37,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 108 events. 18/108 cut-off events. For 151/158 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 544 event pairs, 9 based on Foata normal form. 2/73 useless extension candidates. Maximal degree in co-relation 228. Up to 29 conditions per place. [2021-04-29 00:38:37,393 INFO L146 LiptonReduction]: Number of co-enabled transitions 576 [2021-04-29 00:38:37,396 INFO L158 LiptonReduction]: Checked pairs total: 42 [2021-04-29 00:38:37,396 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:37,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-29 00:38:37,397 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 164 flow [2021-04-29 00:38:37,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 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) [2021-04-29 00:38:37,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:37,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:37,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:38:37,398 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:37,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2076995881, now seen corresponding path program 1 times [2021-04-29 00:38:37,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:37,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283637760] [2021-04-29 00:38:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:37,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:37,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:37,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:37,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:37,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283637760] [2021-04-29 00:38:37,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:37,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:38:37,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605118199] [2021-04-29 00:38:37,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:38:37,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:37,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:38:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:38:37,515 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 251 [2021-04-29 00:38:37,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2021-04-29 00:38:37,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:37,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 251 [2021-04-29 00:38:37,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:37,693 INFO L129 PetriNetUnfolder]: 37/156 cut-off events. [2021-04-29 00:38:37,693 INFO L130 PetriNetUnfolder]: For 214/223 co-relation queries the response was YES. [2021-04-29 00:38:37,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 156 events. 37/156 cut-off events. For 214/223 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 843 event pairs, 2 based on Foata normal form. 7/120 useless extension candidates. Maximal degree in co-relation 399. Up to 62 conditions per place. [2021-04-29 00:38:37,695 INFO L132 encePairwiseOnDemand]: 244/251 looper letters, 7 selfloop transitions, 12 changer transitions 0/43 dead transitions. [2021-04-29 00:38:37,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 222 flow [2021-04-29 00:38:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:38:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:38:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 893 transitions. [2021-04-29 00:38:37,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5929614873837982 [2021-04-29 00:38:37,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 893 transitions. [2021-04-29 00:38:37,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 893 transitions. [2021-04-29 00:38:37,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:37,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 893 transitions. [2021-04-29 00:38:37,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 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) [2021-04-29 00:38:37,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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) [2021-04-29 00:38:37,710 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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) [2021-04-29 00:38:37,710 INFO L185 Difference]: Start difference. First operand has 49 places, 38 transitions, 164 flow. Second operand 6 states and 893 transitions. [2021-04-29 00:38:37,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 222 flow [2021-04-29 00:38:37,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:38:37,714 INFO L241 Difference]: Finished difference. Result has 52 places, 41 transitions, 200 flow [2021-04-29 00:38:37,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2021-04-29 00:38:37,714 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -51 predicate places. [2021-04-29 00:38:37,714 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:37,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 41 transitions, 200 flow [2021-04-29 00:38:37,715 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 41 transitions, 200 flow [2021-04-29 00:38:37,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 41 transitions, 200 flow [2021-04-29 00:38:37,740 INFO L129 PetriNetUnfolder]: 33/153 cut-off events. [2021-04-29 00:38:37,740 INFO L130 PetriNetUnfolder]: For 210/222 co-relation queries the response was YES. [2021-04-29 00:38:37,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 153 events. 33/153 cut-off events. For 210/222 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 832 event pairs, 7 based on Foata normal form. 4/109 useless extension candidates. Maximal degree in co-relation 386. Up to 53 conditions per place. [2021-04-29 00:38:37,744 INFO L146 LiptonReduction]: Number of co-enabled transitions 624 [2021-04-29 00:38:37,749 INFO L158 LiptonReduction]: Checked pairs total: 69 [2021-04-29 00:38:37,749 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:37,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 00:38:37,750 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 200 flow [2021-04-29 00:38:37,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2021-04-29 00:38:37,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:37,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:37,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:38:37,752 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2117421121, now seen corresponding path program 2 times [2021-04-29 00:38:37,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:37,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032668607] [2021-04-29 00:38:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:37,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:37,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:37,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 00:38:37,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:37,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 00:38:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:37,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032668607] [2021-04-29 00:38:37,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:37,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:38:37,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183284383] [2021-04-29 00:38:37,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:38:37,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:37,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:38:37,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:38:37,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 251 [2021-04-29 00:38:37,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 146.83333333333334) internal successors, (881), 6 states have internal predecessors, (881), 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) [2021-04-29 00:38:37,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:37,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 251 [2021-04-29 00:38:37,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:38,158 INFO L129 PetriNetUnfolder]: 34/158 cut-off events. [2021-04-29 00:38:38,158 INFO L130 PetriNetUnfolder]: For 295/306 co-relation queries the response was YES. [2021-04-29 00:38:38,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 158 events. 34/158 cut-off events. For 295/306 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 910 event pairs, 2 based on Foata normal form. 13/126 useless extension candidates. Maximal degree in co-relation 469. Up to 55 conditions per place. [2021-04-29 00:38:38,160 INFO L132 encePairwiseOnDemand]: 244/251 looper letters, 6 selfloop transitions, 14 changer transitions 3/46 dead transitions. [2021-04-29 00:38:38,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 46 transitions, 274 flow [2021-04-29 00:38:38,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:38:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:38:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1043 transitions. [2021-04-29 00:38:38,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5936254980079682 [2021-04-29 00:38:38,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1043 transitions. [2021-04-29 00:38:38,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1043 transitions. [2021-04-29 00:38:38,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:38,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1043 transitions. [2021-04-29 00:38:38,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2021-04-29 00:38:38,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 251.0) internal successors, (2008), 8 states have internal predecessors, (2008), 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) [2021-04-29 00:38:38,176 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 251.0) internal successors, (2008), 8 states have internal predecessors, (2008), 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) [2021-04-29 00:38:38,176 INFO L185 Difference]: Start difference. First operand has 52 places, 41 transitions, 200 flow. Second operand 7 states and 1043 transitions. [2021-04-29 00:38:38,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 46 transitions, 274 flow [2021-04-29 00:38:38,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 257 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-04-29 00:38:38,180 INFO L241 Difference]: Finished difference. Result has 56 places, 41 transitions, 228 flow [2021-04-29 00:38:38,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=228, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-04-29 00:38:38,181 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -47 predicate places. [2021-04-29 00:38:38,181 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:38,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 41 transitions, 228 flow [2021-04-29 00:38:38,181 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 41 transitions, 228 flow [2021-04-29 00:38:38,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 228 flow [2021-04-29 00:38:38,227 INFO L129 PetriNetUnfolder]: 27/133 cut-off events. [2021-04-29 00:38:38,227 INFO L130 PetriNetUnfolder]: For 253/268 co-relation queries the response was YES. [2021-04-29 00:38:38,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 133 events. 27/133 cut-off events. For 253/268 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 727 event pairs, 6 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 386. Up to 49 conditions per place. [2021-04-29 00:38:38,230 INFO L146 LiptonReduction]: Number of co-enabled transitions 550 [2021-04-29 00:38:38,233 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-29 00:38:38,233 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:38,233 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-04-29 00:38:38,234 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 228 flow [2021-04-29 00:38:38,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 146.83333333333334) internal successors, (881), 6 states have internal predecessors, (881), 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) [2021-04-29 00:38:38,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:38,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:38,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:38:38,235 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:38,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:38,236 INFO L82 PathProgramCache]: Analyzing trace with hash 36503238, now seen corresponding path program 1 times [2021-04-29 00:38:38,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:38,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134471053] [2021-04-29 00:38:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:38,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:38,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:38,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:38:38,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:38,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134471053] [2021-04-29 00:38:38,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:38,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:38:38,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988150240] [2021-04-29 00:38:38,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:38:38,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:38,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:38:38,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:38:38,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 251 [2021-04-29 00:38:38,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 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) [2021-04-29 00:38:38,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:38,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 251 [2021-04-29 00:38:38,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:38,652 INFO L129 PetriNetUnfolder]: 572/1371 cut-off events. [2021-04-29 00:38:38,652 INFO L130 PetriNetUnfolder]: For 757/1303 co-relation queries the response was YES. [2021-04-29 00:38:38,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 1371 events. 572/1371 cut-off events. For 757/1303 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 12174 event pairs, 153 based on Foata normal form. 75/393 useless extension candidates. Maximal degree in co-relation 3132. Up to 808 conditions per place. [2021-04-29 00:38:38,661 INFO L132 encePairwiseOnDemand]: 237/251 looper letters, 17 selfloop transitions, 21 changer transitions 6/64 dead transitions. [2021-04-29 00:38:38,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 341 flow [2021-04-29 00:38:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:38:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:38:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 862 transitions. [2021-04-29 00:38:38,667 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6868525896414343 [2021-04-29 00:38:38,667 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 862 transitions. [2021-04-29 00:38:38,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 862 transitions. [2021-04-29 00:38:38,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:38,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 862 transitions. [2021-04-29 00:38:38,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.4) internal successors, (862), 5 states have internal predecessors, (862), 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) [2021-04-29 00:38:38,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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) [2021-04-29 00:38:38,676 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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) [2021-04-29 00:38:38,676 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 228 flow. Second operand 5 states and 862 transitions. [2021-04-29 00:38:38,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 341 flow [2021-04-29 00:38:38,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 311 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-04-29 00:38:38,682 INFO L241 Difference]: Finished difference. Result has 55 places, 57 transitions, 319 flow [2021-04-29 00:38:38,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2021-04-29 00:38:38,683 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -48 predicate places. [2021-04-29 00:38:38,683 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:38,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 57 transitions, 319 flow [2021-04-29 00:38:38,684 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 57 transitions, 319 flow [2021-04-29 00:38:38,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 57 transitions, 319 flow [2021-04-29 00:38:38,767 INFO L129 PetriNetUnfolder]: 80/604 cut-off events. [2021-04-29 00:38:38,768 INFO L130 PetriNetUnfolder]: For 669/787 co-relation queries the response was YES. [2021-04-29 00:38:38,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 604 events. 80/604 cut-off events. For 669/787 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 6512 event pairs, 9 based on Foata normal form. 9/236 useless extension candidates. Maximal degree in co-relation 1728. Up to 210 conditions per place. [2021-04-29 00:38:38,779 INFO L146 LiptonReduction]: Number of co-enabled transitions 612 [2021-04-29 00:38:38,783 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:38:38,783 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:38,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-04-29 00:38:38,784 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 319 flow [2021-04-29 00:38:38,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 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) [2021-04-29 00:38:38,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:38,785 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:38,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:38:38,785 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:38,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1387426207, now seen corresponding path program 1 times [2021-04-29 00:38:38,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:38,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997751557] [2021-04-29 00:38:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:38,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:38,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:38:38,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:38:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:38,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997751557] [2021-04-29 00:38:38,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:38,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:38:38,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756478560] [2021-04-29 00:38:38,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:38:38,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:38,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:38:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:38:38,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 251 [2021-04-29 00:38:38,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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) [2021-04-29 00:38:38,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:38,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 251 [2021-04-29 00:38:38,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:39,291 INFO L129 PetriNetUnfolder]: 215/921 cut-off events. [2021-04-29 00:38:39,291 INFO L130 PetriNetUnfolder]: For 1065/3795 co-relation queries the response was YES. [2021-04-29 00:38:39,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3062 conditions, 921 events. 215/921 cut-off events. For 1065/3795 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 9644 event pairs, 0 based on Foata normal form. 103/354 useless extension candidates. Maximal degree in co-relation 3041. Up to 337 conditions per place. [2021-04-29 00:38:39,297 INFO L132 encePairwiseOnDemand]: 237/251 looper letters, 4 selfloop transitions, 33 changer transitions 18/70 dead transitions. [2021-04-29 00:38:39,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 70 transitions, 463 flow [2021-04-29 00:38:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:38:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:38:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1196 transitions. [2021-04-29 00:38:39,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6807057484348321 [2021-04-29 00:38:39,305 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1196 transitions. [2021-04-29 00:38:39,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1196 transitions. [2021-04-29 00:38:39,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:39,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1196 transitions. [2021-04-29 00:38:39,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.85714285714286) internal successors, (1196), 7 states have internal predecessors, (1196), 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) [2021-04-29 00:38:39,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 251.0) internal successors, (2008), 8 states have internal predecessors, (2008), 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) [2021-04-29 00:38:39,315 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 251.0) internal successors, (2008), 8 states have internal predecessors, (2008), 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) [2021-04-29 00:38:39,316 INFO L185 Difference]: Start difference. First operand has 55 places, 57 transitions, 319 flow. Second operand 7 states and 1196 transitions. [2021-04-29 00:38:39,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 70 transitions, 463 flow [2021-04-29 00:38:39,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 70 transitions, 446 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-04-29 00:38:39,322 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 369 flow [2021-04-29 00:38:39,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=369, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-04-29 00:38:39,323 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -40 predicate places. [2021-04-29 00:38:39,323 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:39,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 369 flow [2021-04-29 00:38:39,324 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 369 flow [2021-04-29 00:38:39,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 51 transitions, 369 flow [2021-04-29 00:38:39,359 INFO L129 PetriNetUnfolder]: 23/249 cut-off events. [2021-04-29 00:38:39,359 INFO L130 PetriNetUnfolder]: For 580/751 co-relation queries the response was YES. [2021-04-29 00:38:39,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 249 events. 23/249 cut-off events. For 580/751 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 2171 event pairs, 0 based on Foata normal form. 3/85 useless extension candidates. Maximal degree in co-relation 970. Up to 168 conditions per place. [2021-04-29 00:38:39,364 INFO L146 LiptonReduction]: Number of co-enabled transitions 384 [2021-04-29 00:38:39,369 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:38:39,369 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:38:39,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 00:38:39,370 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 369 flow [2021-04-29 00:38:39,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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) [2021-04-29 00:38:39,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:39,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:39,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:38:39,372 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:39,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:39,372 INFO L82 PathProgramCache]: Analyzing trace with hash -584110380, now seen corresponding path program 1 times [2021-04-29 00:38:39,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:39,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333482786] [2021-04-29 00:38:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:38:39,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:39,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:38:39,477 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-04-29 00:38:39,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-29 00:38:39,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:39,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-29 00:38:39,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:39,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-29 00:38:39,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:38:39,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-29 00:38:39,647 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-04-29 00:38:39,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-04-29 00:38:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:38:39,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333482786] [2021-04-29 00:38:39,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:38:39,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 00:38:39,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753622187] [2021-04-29 00:38:39,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 00:38:39,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:38:39,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 00:38:39,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-04-29 00:38:39,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 251 [2021-04-29 00:38:39,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 369 flow. Second operand has 8 states, 8 states have (on average 136.875) internal successors, (1095), 8 states have internal predecessors, (1095), 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) [2021-04-29 00:38:39,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:38:39,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 251 [2021-04-29 00:38:39,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:38:39,944 INFO L129 PetriNetUnfolder]: 34/330 cut-off events. [2021-04-29 00:38:39,944 INFO L130 PetriNetUnfolder]: For 966/1237 co-relation queries the response was YES. [2021-04-29 00:38:39,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 330 events. 34/330 cut-off events. For 966/1237 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 2918 event pairs, 0 based on Foata normal form. 16/126 useless extension candidates. Maximal degree in co-relation 1348. Up to 210 conditions per place. [2021-04-29 00:38:39,947 INFO L132 encePairwiseOnDemand]: 246/251 looper letters, 5 selfloop transitions, 4 changer transitions 7/53 dead transitions. [2021-04-29 00:38:39,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 414 flow [2021-04-29 00:38:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:38:39,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:38:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2021-04-29 00:38:39,954 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.549800796812749 [2021-04-29 00:38:39,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 828 transitions. [2021-04-29 00:38:39,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 828 transitions. [2021-04-29 00:38:39,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:38:39,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 828 transitions. [2021-04-29 00:38:39,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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) [2021-04-29 00:38:39,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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) [2021-04-29 00:38:39,962 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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) [2021-04-29 00:38:39,962 INFO L185 Difference]: Start difference. First operand has 60 places, 51 transitions, 369 flow. Second operand 6 states and 828 transitions. [2021-04-29 00:38:39,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 414 flow [2021-04-29 00:38:39,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 308 flow, removed 22 selfloop flow, removed 13 redundant places. [2021-04-29 00:38:39,973 INFO L241 Difference]: Finished difference. Result has 53 places, 46 transitions, 246 flow [2021-04-29 00:38:39,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2021-04-29 00:38:39,974 INFO L343 CegarLoopForPetriNet]: 103 programPoint places, -50 predicate places. [2021-04-29 00:38:39,974 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:38:39,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 46 transitions, 246 flow [2021-04-29 00:38:39,975 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 46 transitions, 246 flow [2021-04-29 00:38:39,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 246 flow [2021-04-29 00:38:39,998 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2021-04-29 00:38:39,998 INFO L130 PetriNetUnfolder]: For 68/71 co-relation queries the response was YES. [2021-04-29 00:38:39,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 159 events. 13/159 cut-off events. For 68/71 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 1188 event pairs, 0 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 475. Up to 91 conditions per place. [2021-04-29 00:38:40,000 INFO L146 LiptonReduction]: Number of co-enabled transitions 246 [2021-04-29 00:38:40,385 INFO L158 LiptonReduction]: Checked pairs total: 20 [2021-04-29 00:38:40,385 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 00:38:40,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 412 [2021-04-29 00:38:40,387 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 251 flow [2021-04-29 00:38:40,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 136.875) internal successors, (1095), 8 states have internal predecessors, (1095), 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) [2021-04-29 00:38:40,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:38:40,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:38:40,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:38:40,388 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:38:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:38:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash -17102240, now seen corresponding path program 1 times [2021-04-29 00:38:40,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:38:40,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135990581] [2021-04-29 00:38:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:38:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:38:40,486 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:38:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:38:40,539 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:38:40,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 00:38:40,605 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 00:38:40,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 00:38:40,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:38:40 BasicIcfg [2021-04-29 00:38:40,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:38:40,744 INFO L168 Benchmark]: Toolchain (without parser) took 96226.58 ms. Allocated memory was 302.0 MB in the beginning and 589.3 MB in the end (delta: 287.3 MB). Free memory was 274.2 MB in the beginning and 529.0 MB in the end (delta: -254.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:38:40,744 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:38:40,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.57 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 267.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:38:40,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.19 ms. Allocated memory is still 302.0 MB. Free memory was 267.1 MB in the beginning and 265.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:38:40,748 INFO L168 Benchmark]: Boogie Preprocessor took 76.71 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 262.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:38:40,748 INFO L168 Benchmark]: RCFGBuilder took 2323.18 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 235.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 158.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:38:40,749 INFO L168 Benchmark]: TraceAbstraction took 92797.09 ms. Allocated memory was 302.0 MB in the beginning and 589.3 MB in the end (delta: 287.3 MB). Free memory was 234.0 MB in the beginning and 529.0 MB in the end (delta: -295.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:38:40,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 898.57 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 267.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 67.19 ms. Allocated memory is still 302.0 MB. Free memory was 267.1 MB in the beginning and 265.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 76.71 ms. Allocated memory is still 302.0 MB. Free memory was 265.0 MB in the beginning and 262.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2323.18 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 235.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 158.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 92797.09 ms. Allocated memory was 302.0 MB in the beginning and 589.3 MB in the end (delta: 287.3 MB). Free memory was 234.0 MB in the beginning and 529.0 MB in the end (delta: -295.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85838.1ms, 82 PlacesBefore, 103 PlacesAfterwards, 77 TransitionsBefore, 98 TransitionsAfterwards, 926 CoEnabledTransitionPairs, 8 FixpointIterations, 104 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 172 TotalNumberOfCompositions, 8042 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2469, positive: 2284, positive conditional: 2284, positive unconditional: 0, negative: 185, negative conditional: 185, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1203, positive: 1153, positive conditional: 0, positive unconditional: 1153, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1203, positive: 1153, positive conditional: 0, positive unconditional: 1153, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1203, positive: 1135, positive conditional: 0, positive unconditional: 1135, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1762, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 1668, negative conditional: 0, negative unconditional: 1668, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2469, positive: 1131, positive conditional: 1131, positive unconditional: 0, negative: 135, negative conditional: 135, negative unconditional: 0, unknown: 1203, unknown conditional: 1203, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1203, Positive cache size: 1153, Positive conditional cache size: 1153, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 544.0ms, 100 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 462 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 414 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 37, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 37, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 531, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 487, negative conditional: 0, negative unconditional: 487, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 37, unknown conditional: 37, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1240, Positive cache size: 1175, Positive conditional cache size: 1175, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.2ms, 38 PlacesBefore, 38 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 368 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, positive: 24, positive conditional: 3, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 24, positive conditional: 3, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 80, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1268, Positive cache size: 1199, Positive conditional cache size: 1199, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.9ms, 40 PlacesBefore, 40 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 48, positive conditional: 48, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 100, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 100, negative conditional: 47, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1277, Positive cache size: 1205, Positive conditional cache size: 1205, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2ms, 42 PlacesBefore, 41 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1279, Positive cache size: 1207, Positive conditional cache size: 1207, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 44 PlacesBefore, 44 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1279, Positive cache size: 1207, Positive conditional cache size: 1207, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1281, Positive cache size: 1209, Positive conditional cache size: 1209, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.4ms, 49 PlacesBefore, 49 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1283, Positive cache size: 1211, Positive conditional cache size: 1211, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.2ms, 52 PlacesBefore, 52 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 69 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 5, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 5, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1290, Positive cache size: 1218, Positive conditional cache size: 1218, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.5ms, 56 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1292, Positive cache size: 1220, Positive conditional cache size: 1220, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.4ms, 55 PlacesBefore, 55 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 612 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1292, Positive cache size: 1220, Positive conditional cache size: 1220, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.5ms, 63 PlacesBefore, 60 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1292, Positive cache size: 1220, Positive conditional cache size: 1220, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 410.7ms, 53 PlacesBefore, 52 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1308, Positive cache size: 1236, Positive conditional cache size: 1236, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L714] 0 int y = 0; [L715] 0 _Bool y$flush_delayed; [L716] 0 int y$mem_tmp; [L717] 0 _Bool y$r_buff0_thd0; [L718] 0 _Bool y$r_buff0_thd1; [L719] 0 _Bool y$r_buff0_thd2; [L720] 0 _Bool y$r_buff1_thd0; [L721] 0 _Bool y$r_buff1_thd1; [L722] 0 _Bool y$r_buff1_thd2; [L723] 0 _Bool y$read_delayed; [L724] 0 int *y$read_delayed_var; [L725] 0 int y$w_buff0; [L726] 0 _Bool y$w_buff0_used; [L727] 0 int y$w_buff1; [L728] 0 _Bool y$w_buff1_used; [L729] 0 _Bool weak$$choice0; [L730] 0 _Bool weak$$choice2; [L790] 0 pthread_t t2481; [L791] FCALL, FORK 0 pthread_create(&t2481, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L792] 0 pthread_t t2482; [L793] FCALL, FORK 0 pthread_create(&t2482, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 1 y$w_buff1 = y$w_buff0 [L735] 1 y$w_buff0 = 2 [L736] 1 y$w_buff1_used = y$w_buff0_used [L737] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L739] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L740] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L741] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L742] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L745] 1 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L762] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L765] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L748] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L749] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L750] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L751] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L751] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L752] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L768] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L768] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L769] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L770] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L771] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L772] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L755] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L757] 1 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L795] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L799] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L799] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L799] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L799] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L800] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L800] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L801] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L801] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L802] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L802] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L803] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L803] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L806] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L807] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L808] 0 y$flush_delayed = weak$$choice2 [L809] 0 y$mem_tmp = y [L810] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L810] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L811] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L811] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L811] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L811] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L812] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L812] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L812] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L812] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L813] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L813] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L813] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L813] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L814] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L814] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L814] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L814] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L815] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L815] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L815] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L816] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L816] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 main$tmp_guard1 = !(x == 2 && y == 2) [L818] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L818] 0 y = y$flush_delayed ? y$mem_tmp : y [L819] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 92535.5ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2704.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 85940.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 45 SDslu, 11 SDs, 0 SdLazy, 314 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 879.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 814.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=11, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 55.2ms SsaConstructionTime, 502.0ms SatisfiabilityAnalysisTime, 1400.2ms InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...