/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:01:43,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:01:43,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:01:43,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:01:43,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:01:43,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:01:43,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:01:43,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:01:43,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:01:43,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:01:43,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:01:43,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:01:43,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:01:43,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:01:43,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:01:43,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:01:43,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:01:43,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:01:43,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:01:43,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:01:43,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:01:43,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:01:43,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:01:43,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:01:43,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:01:43,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:01:43,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:01:43,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:01:43,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:01:43,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:01:43,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:01:43,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:01:43,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:01:43,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:01:43,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:01:43,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:01:43,732 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-RepeatedVariableLbe.epf [2021-03-25 05:01:43,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:01:43,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:01:43,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:01:43,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:01:43,753 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:01:43,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:01:43,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:01:43,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:01:43,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:01:43,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:01:43,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:01:43,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:01:43,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:01:43,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:01:43,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:01:43,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:01:43,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:01:43,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:01:44,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:01:44,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:01:44,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:01:44,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:01:44,047 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:01:44,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_rmo.oepc.i [2021-03-25 05:01:44,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e384ebf/e7a2a1ae9b5f458a875334f264ce5d72/FLAG41e0fb4dc [2021-03-25 05:01:44,620 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:01:44,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_rmo.oepc.i [2021-03-25 05:01:44,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e384ebf/e7a2a1ae9b5f458a875334f264ce5d72/FLAG41e0fb4dc [2021-03-25 05:01:44,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e384ebf/e7a2a1ae9b5f458a875334f264ce5d72 [2021-03-25 05:01:44,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:01:44,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:01:44,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:01:44,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:01:44,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:01:44,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:01:44" (1/1) ... [2021-03-25 05:01:44,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f66b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:44, skipping insertion in model container [2021-03-25 05:01:44,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:01:44" (1/1) ... [2021-03-25 05:01:44,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:01:44,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:01:45,133 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/safe011_rmo.oepc.i[950,963] [2021-03-25 05:01:45,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:01:45,361 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:01:45,376 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/safe011_rmo.oepc.i[950,963] [2021-03-25 05:01:45,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:01:45,511 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:01:45,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45 WrapperNode [2021-03-25 05:01:45,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:01:45,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:01:45,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:01:45,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:01:45,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:01:45,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:01:45,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:01:45,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:01:45,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... [2021-03-25 05:01:45,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:01:45,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:01:45,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:01:45,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:01:45,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:01:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:01:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:01:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:01:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:01:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:01:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:01:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:01:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:01:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:01:45,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:01:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:01:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:01:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:01:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:01:45,708 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:01:47,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:01:47,321 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 05:01:47,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:01:47 BoogieIcfgContainer [2021-03-25 05:01:47,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:01:47,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:01:47,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:01:47,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:01:47,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:01:44" (1/3) ... [2021-03-25 05:01:47,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299004a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:01:47, skipping insertion in model container [2021-03-25 05:01:47,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:01:45" (2/3) ... [2021-03-25 05:01:47,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299004a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:01:47, skipping insertion in model container [2021-03-25 05:01:47,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:01:47" (3/3) ... [2021-03-25 05:01:47,331 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_rmo.oepc.i [2021-03-25 05:01:47,336 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:01:47,340 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 05:01:47,341 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:01:47,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,386 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,386 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:01:47,401 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:01:47,416 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 05:01:47,433 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:01:47,434 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:01:47,434 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:01:47,434 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:01:47,434 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:01:47,434 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:01:47,434 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:01:47,434 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:01:47,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-03-25 05:01:47,474 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-25 05:01:47,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:47,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-25 05:01:47,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-03-25 05:01:47,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-03-25 05:01:47,483 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:47,491 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-25 05:01:47,493 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-25 05:01:47,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-03-25 05:01:47,525 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-25 05:01:47,525 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:47,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-25 05:01:47,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 1694 [2021-03-25 05:01:49,025 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-03-25 05:01:49,559 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2021-03-25 05:01:51,008 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-25 05:01:51,584 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-25 05:01:51,749 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 05:01:52,128 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 05:01:52,249 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 05:01:53,088 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-25 05:01:53,378 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-25 05:01:53,970 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 05:01:54,606 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 05:01:54,797 INFO L154 LiptonReduction]: Checked pairs total: 3065 [2021-03-25 05:01:54,797 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-25 05:01:54,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7317 [2021-03-25 05:01:54,804 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-25 05:01:54,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:54,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:54,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:54,805 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:54,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:54,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1571617397, now seen corresponding path program 1 times [2021-03-25 05:01:54,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:54,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205495047] [2021-03-25 05:01:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:55,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:55,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:01:55,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:55,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:01:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:55,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205495047] [2021-03-25 05:01:55,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:55,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:01:55,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453362994] [2021-03-25 05:01:55,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:01:55,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:55,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:01:55,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:01:55,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 161 [2021-03-25 05:01:55,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:55,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:55,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 161 [2021-03-25 05:01:55,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:01:55,185 INFO L129 PetriNetUnfolder]: 69/200 cut-off events. [2021-03-25 05:01:55,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:55,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 200 events. 69/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 953 event pairs, 54 based on Foata normal form. 11/193 useless extension candidates. Maximal degree in co-relation 309. Up to 89 conditions per place. [2021-03-25 05:01:55,189 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 5/41 dead transitions. [2021-03-25 05:01:55,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 117 flow [2021-03-25 05:01:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:01:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:01:55,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-03-25 05:01:55,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8964803312629399 [2021-03-25 05:01:55,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-03-25 05:01:55,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-03-25 05:01:55,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:01:55,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-03-25 05:01:55,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:55,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:55,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:55,215 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 433 transitions. [2021-03-25 05:01:55,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 117 flow [2021-03-25 05:01:55,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 05:01:55,219 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 74 flow [2021-03-25 05:01:55,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-25 05:01:55,221 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-25 05:01:55,221 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:55,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 74 flow [2021-03-25 05:01:55,223 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 74 flow [2021-03-25 05:01:55,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-25 05:01:55,230 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 05:01:55,231 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:55,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 05:01:55,231 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 05:01:55,838 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 05:01:56,176 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 05:01:56,864 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 05:01:57,483 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 05:01:57,737 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-03-25 05:01:57,888 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-03-25 05:01:57,938 INFO L154 LiptonReduction]: Checked pairs total: 942 [2021-03-25 05:01:57,938 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 05:01:57,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2718 [2021-03-25 05:01:57,939 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-25 05:01:57,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:57,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:57,940 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:57,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:01:57,940 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash -72729481, now seen corresponding path program 1 times [2021-03-25 05:01:57,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:57,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188254307] [2021-03-25 05:01:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:58,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:58,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:01:58,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:58,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:01:58,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 05:01:58,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:01:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:58,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188254307] [2021-03-25 05:01:58,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:58,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:01:58,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925740186] [2021-03-25 05:01:58,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:01:58,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:58,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:01:58,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:01:58,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 169 [2021-03-25 05:01:58,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:58,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:58,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 169 [2021-03-25 05:01:58,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:01:58,102 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-03-25 05:01:58,103 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:58,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 1 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 46. Up to 10 conditions per place. [2021-03-25 05:01:58,103 INFO L132 encePairwiseOnDemand]: 165/169 looper letters, 3 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-25 05:01:58,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 74 flow [2021-03-25 05:01:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:01:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:01:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2021-03-25 05:01:58,106 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8599605522682445 [2021-03-25 05:01:58,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2021-03-25 05:01:58,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2021-03-25 05:01:58,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:01:58,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2021-03-25 05:01:58,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:58,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:58,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:58,110 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 3 states and 436 transitions. [2021-03-25 05:01:58,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 74 flow [2021-03-25 05:01:58,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:01:58,111 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 73 flow [2021-03-25 05:01:58,112 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-25 05:01:58,112 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2021-03-25 05:01:58,112 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:58,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 73 flow [2021-03-25 05:01:58,113 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 73 flow [2021-03-25 05:01:58,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 73 flow [2021-03-25 05:01:58,117 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-03-25 05:01:58,117 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:01:58,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2021-03-25 05:01:58,118 INFO L142 LiptonReduction]: Number of co-enabled transitions 270 [2021-03-25 05:01:58,567 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-03-25 05:01:58,697 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-25 05:01:58,993 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-03-25 05:01:59,129 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-25 05:01:59,133 INFO L154 LiptonReduction]: Checked pairs total: 792 [2021-03-25 05:01:59,133 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:01:59,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1021 [2021-03-25 05:01:59,134 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 69 flow [2021-03-25 05:01:59,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:59,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:59,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:01:59,135 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:59,135 INFO L82 PathProgramCache]: Analyzing trace with hash -999718679, now seen corresponding path program 1 times [2021-03-25 05:01:59,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:59,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932312246] [2021-03-25 05:01:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:59,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:01:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:59,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932312246] [2021-03-25 05:01:59,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:59,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 05:01:59,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011521605] [2021-03-25 05:01:59,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:01:59,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:59,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:01:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:01:59,223 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 171 [2021-03-25 05:01:59,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:59,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 171 [2021-03-25 05:01:59,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:01:59,238 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-25 05:01:59,238 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 05:01:59,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 34 events. 3/34 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 1 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 51. Up to 10 conditions per place. [2021-03-25 05:01:59,239 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 1 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2021-03-25 05:01:59,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 75 flow [2021-03-25 05:01:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:01:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:01:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2021-03-25 05:01:59,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8908382066276803 [2021-03-25 05:01:59,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions. [2021-03-25 05:01:59,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions. [2021-03-25 05:01:59,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:01:59,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions. [2021-03-25 05:01:59,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,246 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,246 INFO L185 Difference]: Start difference. First operand has 32 places, 24 transitions, 69 flow. Second operand 3 states and 457 transitions. [2021-03-25 05:01:59,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 75 flow [2021-03-25 05:01:59,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:01:59,247 INFO L241 Difference]: Finished difference. Result has 34 places, 24 transitions, 74 flow [2021-03-25 05:01:59,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2021-03-25 05:01:59,247 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2021-03-25 05:01:59,248 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:59,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 24 transitions, 74 flow [2021-03-25 05:01:59,248 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 24 transitions, 74 flow [2021-03-25 05:01:59,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 74 flow [2021-03-25 05:01:59,254 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-25 05:01:59,254 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 05:01:59,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 34 events. 3/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 80 event pairs, 1 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-03-25 05:01:59,255 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 05:01:59,257 INFO L154 LiptonReduction]: Checked pairs total: 250 [2021-03-25 05:01:59,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:01:59,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:01:59,257 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 74 flow [2021-03-25 05:01:59,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:59,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:59,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:01:59,258 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash 476868744, now seen corresponding path program 1 times [2021-03-25 05:01:59,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:59,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101785367] [2021-03-25 05:01:59,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:59,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:01:59,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:01:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:59,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101785367] [2021-03-25 05:01:59,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:59,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:01:59,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160642753] [2021-03-25 05:01:59,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:01:59,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:59,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:01:59,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:01:59,378 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 171 [2021-03-25 05:01:59,379 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,379 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:59,379 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 171 [2021-03-25 05:01:59,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:01:59,408 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-03-25 05:01:59,408 INFO L130 PetriNetUnfolder]: For 18/21 co-relation queries the response was YES. [2021-03-25 05:01:59,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 43 events. 2/43 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 139 event pairs, 0 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 69. Up to 8 conditions per place. [2021-03-25 05:01:59,409 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 2 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-25 05:01:59,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:01:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:01:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-25 05:01:59,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8581871345029239 [2021-03-25 05:01:59,412 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-25 05:01:59,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-25 05:01:59,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:01:59,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-25 05:01:59,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,415 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,415 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 74 flow. Second operand 4 states and 587 transitions. [2021-03-25 05:01:59,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:01:59,416 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-25 05:01:59,417 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2021-03-25 05:01:59,417 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:59,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,424 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-03-25 05:01:59,424 INFO L130 PetriNetUnfolder]: For 19/28 co-relation queries the response was YES. [2021-03-25 05:01:59,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 43 events. 2/43 cut-off events. For 19/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 138 event pairs, 0 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 74. Up to 8 conditions per place. [2021-03-25 05:01:59,427 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 05:01:59,428 INFO L154 LiptonReduction]: Checked pairs total: 258 [2021-03-25 05:01:59,428 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:01:59,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 05:01:59,429 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 89 flow [2021-03-25 05:01:59,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:59,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:59,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:01:59,430 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:59,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1062075708, now seen corresponding path program 1 times [2021-03-25 05:01:59,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:59,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9237891] [2021-03-25 05:01:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:59,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:01:59,498 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-03-25 05:01:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:01:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:59,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9237891] [2021-03-25 05:01:59,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:59,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:01:59,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696236137] [2021-03-25 05:01:59,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:01:59,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:59,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:01:59,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:01:59,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 171 [2021-03-25 05:01:59,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:59,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 171 [2021-03-25 05:01:59,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:01:59,613 INFO L129 PetriNetUnfolder]: 180/363 cut-off events. [2021-03-25 05:01:59,613 INFO L130 PetriNetUnfolder]: For 371/417 co-relation queries the response was YES. [2021-03-25 05:01:59,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 363 events. 180/363 cut-off events. For 371/417 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1847 event pairs, 37 based on Foata normal form. 21/362 useless extension candidates. Maximal degree in co-relation 778. Up to 246 conditions per place. [2021-03-25 05:01:59,619 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 11 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2021-03-25 05:01:59,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 145 flow [2021-03-25 05:01:59,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:01:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:01:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2021-03-25 05:01:59,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2021-03-25 05:01:59,621 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 540 transitions. [2021-03-25 05:01:59,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 540 transitions. [2021-03-25 05:01:59,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:01:59,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 540 transitions. [2021-03-25 05:01:59,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,625 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,625 INFO L185 Difference]: Start difference. First operand has 37 places, 25 transitions, 89 flow. Second operand 4 states and 540 transitions. [2021-03-25 05:01:59,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 145 flow [2021-03-25 05:01:59,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:01:59,628 INFO L241 Difference]: Finished difference. Result has 40 places, 31 transitions, 134 flow [2021-03-25 05:01:59,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2021-03-25 05:01:59,629 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2021-03-25 05:01:59,629 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:01:59,629 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 31 transitions, 134 flow [2021-03-25 05:01:59,629 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 31 transitions, 134 flow [2021-03-25 05:01:59,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 31 transitions, 134 flow [2021-03-25 05:01:59,656 INFO L129 PetriNetUnfolder]: 70/198 cut-off events. [2021-03-25 05:01:59,656 INFO L130 PetriNetUnfolder]: For 402/427 co-relation queries the response was YES. [2021-03-25 05:01:59,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 198 events. 70/198 cut-off events. For 402/427 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1033 event pairs, 15 based on Foata normal form. 4/186 useless extension candidates. Maximal degree in co-relation 505. Up to 110 conditions per place. [2021-03-25 05:01:59,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-25 05:01:59,665 INFO L154 LiptonReduction]: Checked pairs total: 61 [2021-03-25 05:01:59,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:01:59,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 05:01:59,669 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 134 flow [2021-03-25 05:01:59,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:01:59,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:01:59,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:01:59,670 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:01:59,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:01:59,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1184472838, now seen corresponding path program 1 times [2021-03-25 05:01:59,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:01:59,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664292279] [2021-03-25 05:01:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:01:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:01:59,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:01:59,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 05:01:59,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:01:59,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:01:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:01:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:01:59,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664292279] [2021-03-25 05:01:59,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:01:59,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:01:59,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404234449] [2021-03-25 05:01:59,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:01:59,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:01:59,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:01:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:01:59,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 171 [2021-03-25 05:01:59,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:01:59,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:01:59,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 171 [2021-03-25 05:01:59,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:00,047 INFO L129 PetriNetUnfolder]: 177/389 cut-off events. [2021-03-25 05:02:00,048 INFO L130 PetriNetUnfolder]: For 509/631 co-relation queries the response was YES. [2021-03-25 05:02:00,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 389 events. 177/389 cut-off events. For 509/631 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2196 event pairs, 16 based on Foata normal form. 35/410 useless extension candidates. Maximal degree in co-relation 1110. Up to 230 conditions per place. [2021-03-25 05:02:00,051 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 19 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2021-03-25 05:02:00,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 295 flow [2021-03-25 05:02:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:02:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:02:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 913 transitions. [2021-03-25 05:02:00,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7627401837928154 [2021-03-25 05:02:00,054 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 913 transitions. [2021-03-25 05:02:00,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 913 transitions. [2021-03-25 05:02:00,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:00,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 913 transitions. [2021-03-25 05:02:00,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.42857142857142) internal successors, (913), 7 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,059 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,059 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 134 flow. Second operand 7 states and 913 transitions. [2021-03-25 05:02:00,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 295 flow [2021-03-25 05:02:00,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:02:00,065 INFO L241 Difference]: Finished difference. Result has 51 places, 47 transitions, 289 flow [2021-03-25 05:02:00,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=289, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2021-03-25 05:02:00,065 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2021-03-25 05:02:00,065 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:00,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 47 transitions, 289 flow [2021-03-25 05:02:00,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 47 transitions, 289 flow [2021-03-25 05:02:00,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 289 flow [2021-03-25 05:02:00,092 INFO L129 PetriNetUnfolder]: 59/178 cut-off events. [2021-03-25 05:02:00,092 INFO L130 PetriNetUnfolder]: For 821/880 co-relation queries the response was YES. [2021-03-25 05:02:00,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 178 events. 59/178 cut-off events. For 821/880 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 904 event pairs, 11 based on Foata normal form. 7/177 useless extension candidates. Maximal degree in co-relation 615. Up to 98 conditions per place. [2021-03-25 05:02:00,095 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 05:02:00,105 INFO L154 LiptonReduction]: Checked pairs total: 242 [2021-03-25 05:02:00,106 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:00,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 05:02:00,108 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 289 flow [2021-03-25 05:02:00,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:00,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:00,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:02:00,109 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:00,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1873263671, now seen corresponding path program 1 times [2021-03-25 05:02:00,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:00,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843228110] [2021-03-25 05:02:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:00,217 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-25 05:02:00,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:02:00,229 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-25 05:02:00,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:02:00,242 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-03-25 05:02:00,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:02:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:00,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843228110] [2021-03-25 05:02:00,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:00,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:02:00,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4947106] [2021-03-25 05:02:00,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:02:00,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:00,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:02:00,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:02:00,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 171 [2021-03-25 05:02:00,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:00,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 171 [2021-03-25 05:02:00,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:00,368 INFO L129 PetriNetUnfolder]: 183/393 cut-off events. [2021-03-25 05:02:00,368 INFO L130 PetriNetUnfolder]: For 1387/1612 co-relation queries the response was YES. [2021-03-25 05:02:00,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 393 events. 183/393 cut-off events. For 1387/1612 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2153 event pairs, 60 based on Foata normal form. 27/397 useless extension candidates. Maximal degree in co-relation 1485. Up to 246 conditions per place. [2021-03-25 05:02:00,372 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 29 selfloop transitions, 14 changer transitions 0/60 dead transitions. [2021-03-25 05:02:00,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 467 flow [2021-03-25 05:02:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:02:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:02:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2021-03-25 05:02:00,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7690058479532164 [2021-03-25 05:02:00,375 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2021-03-25 05:02:00,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2021-03-25 05:02:00,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:00,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2021-03-25 05:02:00,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,378 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,378 INFO L185 Difference]: Start difference. First operand has 51 places, 47 transitions, 289 flow. Second operand 4 states and 526 transitions. [2021-03-25 05:02:00,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 467 flow [2021-03-25 05:02:00,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 457 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-03-25 05:02:00,382 INFO L241 Difference]: Finished difference. Result has 55 places, 53 transitions, 359 flow [2021-03-25 05:02:00,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2021-03-25 05:02:00,382 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-25 05:02:00,382 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:00,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 53 transitions, 359 flow [2021-03-25 05:02:00,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 53 transitions, 359 flow [2021-03-25 05:02:00,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 53 transitions, 359 flow [2021-03-25 05:02:00,421 INFO L129 PetriNetUnfolder]: 119/306 cut-off events. [2021-03-25 05:02:00,421 INFO L130 PetriNetUnfolder]: For 1360/1435 co-relation queries the response was YES. [2021-03-25 05:02:00,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 306 events. 119/306 cut-off events. For 1360/1435 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1769 event pairs, 24 based on Foata normal form. 12/302 useless extension candidates. Maximal degree in co-relation 1102. Up to 142 conditions per place. [2021-03-25 05:02:00,425 INFO L142 LiptonReduction]: Number of co-enabled transitions 524 [2021-03-25 05:02:00,442 INFO L154 LiptonReduction]: Checked pairs total: 209 [2021-03-25 05:02:00,442 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:00,442 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 05:02:00,443 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 359 flow [2021-03-25 05:02:00,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,443 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:00,443 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:00,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:02:00,443 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:00,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:00,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1296170364, now seen corresponding path program 1 times [2021-03-25 05:02:00,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:00,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947774870] [2021-03-25 05:02:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:00,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:02:00,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:00,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:02:00,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:00,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:02:00,583 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-03-25 05:02:00,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 05:02:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:00,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947774870] [2021-03-25 05:02:00,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:00,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:02:00,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283492402] [2021-03-25 05:02:00,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:02:00,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:00,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:02:00,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:02:00,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 171 [2021-03-25 05:02:00,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 359 flow. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:00,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 171 [2021-03-25 05:02:00,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:00,711 INFO L129 PetriNetUnfolder]: 185/401 cut-off events. [2021-03-25 05:02:00,711 INFO L130 PetriNetUnfolder]: For 1523/1731 co-relation queries the response was YES. [2021-03-25 05:02:00,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 401 events. 185/401 cut-off events. For 1523/1731 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2217 event pairs, 58 based on Foata normal form. 28/406 useless extension candidates. Maximal degree in co-relation 1659. Up to 248 conditions per place. [2021-03-25 05:02:00,715 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 30 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2021-03-25 05:02:00,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 536 flow [2021-03-25 05:02:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:02:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:02:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2021-03-25 05:02:00,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7982456140350878 [2021-03-25 05:02:00,718 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 546 transitions. [2021-03-25 05:02:00,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 546 transitions. [2021-03-25 05:02:00,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:00,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 546 transitions. [2021-03-25 05:02:00,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,721 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:00,721 INFO L185 Difference]: Start difference. First operand has 55 places, 53 transitions, 359 flow. Second operand 4 states and 546 transitions. [2021-03-25 05:02:00,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 536 flow [2021-03-25 05:02:00,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:02:00,730 INFO L241 Difference]: Finished difference. Result has 58 places, 59 transitions, 441 flow [2021-03-25 05:02:00,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=441, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2021-03-25 05:02:00,731 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2021-03-25 05:02:00,731 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:00,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 441 flow [2021-03-25 05:02:00,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 441 flow [2021-03-25 05:02:00,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 441 flow [2021-03-25 05:02:00,776 INFO L129 PetriNetUnfolder]: 136/333 cut-off events. [2021-03-25 05:02:00,776 INFO L130 PetriNetUnfolder]: For 1673/1749 co-relation queries the response was YES. [2021-03-25 05:02:00,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 333 events. 136/333 cut-off events. For 1673/1749 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1972 event pairs, 28 based on Foata normal form. 9/329 useless extension candidates. Maximal degree in co-relation 1289. Up to 150 conditions per place. [2021-03-25 05:02:00,780 INFO L142 LiptonReduction]: Number of co-enabled transitions 546 [2021-03-25 05:02:01,008 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 05:02:01,457 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 05:02:01,596 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 05:02:01,657 INFO L154 LiptonReduction]: Checked pairs total: 731 [2021-03-25 05:02:01,657 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:02:01,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 926 [2021-03-25 05:02:01,657 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 449 flow [2021-03-25 05:02:01,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:01,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:01,658 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:01,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:02:01,658 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:01,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:01,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1938980261, now seen corresponding path program 2 times [2021-03-25 05:02:01,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:01,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507246185] [2021-03-25 05:02:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:01,756 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 05:02:01,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 05:02:01,788 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 05:02:01,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 05:02:01,830 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.9 percent of original size [2021-03-25 05:02:01,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 05:02:01,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:01,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:02:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:01,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507246185] [2021-03-25 05:02:01,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:01,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:02:01,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803197842] [2021-03-25 05:02:01,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:02:01,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:01,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:02:01,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:02:01,893 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 172 [2021-03-25 05:02:01,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:01,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:01,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 172 [2021-03-25 05:02:01,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:02,021 INFO L129 PetriNetUnfolder]: 184/392 cut-off events. [2021-03-25 05:02:02,022 INFO L130 PetriNetUnfolder]: For 1932/2187 co-relation queries the response was YES. [2021-03-25 05:02:02,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 392 events. 184/392 cut-off events. For 1932/2187 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2145 event pairs, 58 based on Foata normal form. 35/398 useless extension candidates. Maximal degree in co-relation 1784. Up to 247 conditions per place. [2021-03-25 05:02:02,025 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 34 selfloop transitions, 13 changer transitions 0/64 dead transitions. [2021-03-25 05:02:02,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 580 flow [2021-03-25 05:02:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:02:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:02:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 513 transitions. [2021-03-25 05:02:02,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7456395348837209 [2021-03-25 05:02:02,028 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 513 transitions. [2021-03-25 05:02:02,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 513 transitions. [2021-03-25 05:02:02,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:02,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 513 transitions. [2021-03-25 05:02:02,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:02,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:02,031 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:02,031 INFO L185 Difference]: Start difference. First operand has 58 places, 59 transitions, 449 flow. Second operand 4 states and 513 transitions. [2021-03-25 05:02:02,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 580 flow [2021-03-25 05:02:02,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 564 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-25 05:02:02,037 INFO L241 Difference]: Finished difference. Result has 61 places, 59 transitions, 471 flow [2021-03-25 05:02:02,037 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=471, PETRI_PLACES=61, PETRI_TRANSITIONS=59} [2021-03-25 05:02:02,037 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2021-03-25 05:02:02,037 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:02,037 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 59 transitions, 471 flow [2021-03-25 05:02:02,038 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 59 transitions, 471 flow [2021-03-25 05:02:02,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 471 flow [2021-03-25 05:02:02,076 INFO L129 PetriNetUnfolder]: 129/318 cut-off events. [2021-03-25 05:02:02,076 INFO L130 PetriNetUnfolder]: For 1941/2021 co-relation queries the response was YES. [2021-03-25 05:02:02,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 318 events. 129/318 cut-off events. For 1941/2021 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1802 event pairs, 20 based on Foata normal form. 6/310 useless extension candidates. Maximal degree in co-relation 1258. Up to 136 conditions per place. [2021-03-25 05:02:02,081 INFO L142 LiptonReduction]: Number of co-enabled transitions 544 [2021-03-25 05:02:02,768 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-25 05:02:02,984 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-25 05:02:04,785 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 335 DAG size of output: 260 [2021-03-25 05:02:05,291 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-25 05:02:05,308 INFO L154 LiptonReduction]: Checked pairs total: 543 [2021-03-25 05:02:05,308 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:02:05,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3271 [2021-03-25 05:02:05,308 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 491 flow [2021-03-25 05:02:05,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:05,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:05,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:02:05,309 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:05,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1861306475, now seen corresponding path program 1 times [2021-03-25 05:02:05,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:05,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494291110] [2021-03-25 05:02:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:05,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:05,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:02:05,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:05,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:02:05,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:05,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:02:05,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:05,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:02:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:05,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494291110] [2021-03-25 05:02:05,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:05,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:02:05,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081076493] [2021-03-25 05:02:05,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:02:05,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:05,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:02:05,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:02:05,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 173 [2021-03-25 05:02:05,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:05,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 173 [2021-03-25 05:02:05,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:05,536 INFO L129 PetriNetUnfolder]: 208/455 cut-off events. [2021-03-25 05:02:05,536 INFO L130 PetriNetUnfolder]: For 2930/3191 co-relation queries the response was YES. [2021-03-25 05:02:05,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2057 conditions, 455 events. 208/455 cut-off events. For 2930/3191 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2660 event pairs, 47 based on Foata normal form. 40/473 useless extension candidates. Maximal degree in co-relation 2027. Up to 259 conditions per place. [2021-03-25 05:02:05,540 INFO L132 encePairwiseOnDemand]: 164/173 looper letters, 29 selfloop transitions, 23 changer transitions 0/69 dead transitions. [2021-03-25 05:02:05,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 69 transitions, 642 flow [2021-03-25 05:02:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:02:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:02:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 667 transitions. [2021-03-25 05:02:05,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7710982658959538 [2021-03-25 05:02:05,543 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 667 transitions. [2021-03-25 05:02:05,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 667 transitions. [2021-03-25 05:02:05,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:05,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 667 transitions. [2021-03-25 05:02:05,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,547 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,547 INFO L185 Difference]: Start difference. First operand has 61 places, 59 transitions, 491 flow. Second operand 5 states and 667 transitions. [2021-03-25 05:02:05,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 69 transitions, 642 flow [2021-03-25 05:02:05,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 69 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:02:05,554 INFO L241 Difference]: Finished difference. Result has 64 places, 64 transitions, 554 flow [2021-03-25 05:02:05,554 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=554, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2021-03-25 05:02:05,554 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2021-03-25 05:02:05,555 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:05,555 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 64 transitions, 554 flow [2021-03-25 05:02:05,555 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 64 transitions, 554 flow [2021-03-25 05:02:05,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 64 transitions, 554 flow [2021-03-25 05:02:05,599 INFO L129 PetriNetUnfolder]: 148/377 cut-off events. [2021-03-25 05:02:05,599 INFO L130 PetriNetUnfolder]: For 2842/2954 co-relation queries the response was YES. [2021-03-25 05:02:05,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 377 events. 148/377 cut-off events. For 2842/2954 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2332 event pairs, 21 based on Foata normal form. 13/368 useless extension candidates. Maximal degree in co-relation 1635. Up to 165 conditions per place. [2021-03-25 05:02:05,604 INFO L142 LiptonReduction]: Number of co-enabled transitions 588 [2021-03-25 05:02:05,620 INFO L154 LiptonReduction]: Checked pairs total: 357 [2021-03-25 05:02:05,620 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:05,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 05:02:05,621 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 554 flow [2021-03-25 05:02:05,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:05,623 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:05,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:02:05,623 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:05,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1860437855, now seen corresponding path program 2 times [2021-03-25 05:02:05,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:05,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526299520] [2021-03-25 05:02:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:05,697 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-25 05:02:05,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:02:05,708 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-25 05:02:05,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:02:05,717 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-03-25 05:02:05,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:02:05,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:05,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:02:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:05,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526299520] [2021-03-25 05:02:05,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:05,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:02:05,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329762982] [2021-03-25 05:02:05,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:02:05,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:05,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:02:05,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:02:05,738 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 173 [2021-03-25 05:02:05,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:05,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 173 [2021-03-25 05:02:05,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:05,937 INFO L129 PetriNetUnfolder]: 221/493 cut-off events. [2021-03-25 05:02:05,938 INFO L130 PetriNetUnfolder]: For 3693/3981 co-relation queries the response was YES. [2021-03-25 05:02:05,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 493 events. 221/493 cut-off events. For 3693/3981 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 2987 event pairs, 49 based on Foata normal form. 41/510 useless extension candidates. Maximal degree in co-relation 2402. Up to 290 conditions per place. [2021-03-25 05:02:05,942 INFO L132 encePairwiseOnDemand]: 164/173 looper letters, 31 selfloop transitions, 31 changer transitions 0/79 dead transitions. [2021-03-25 05:02:05,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 812 flow [2021-03-25 05:02:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:02:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:02:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-03-25 05:02:05,945 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7364161849710983 [2021-03-25 05:02:05,945 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-03-25 05:02:05,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-03-25 05:02:05,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:05,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-03-25 05:02:05,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,949 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:05,949 INFO L185 Difference]: Start difference. First operand has 64 places, 64 transitions, 554 flow. Second operand 5 states and 637 transitions. [2021-03-25 05:02:05,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 812 flow [2021-03-25 05:02:05,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 79 transitions, 755 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 05:02:05,960 INFO L241 Difference]: Finished difference. Result has 66 places, 76 transitions, 709 flow [2021-03-25 05:02:05,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=709, PETRI_PLACES=66, PETRI_TRANSITIONS=76} [2021-03-25 05:02:05,960 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2021-03-25 05:02:05,960 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:05,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 76 transitions, 709 flow [2021-03-25 05:02:05,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 76 transitions, 709 flow [2021-03-25 05:02:05,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 76 transitions, 709 flow [2021-03-25 05:02:06,015 INFO L129 PetriNetUnfolder]: 177/421 cut-off events. [2021-03-25 05:02:06,015 INFO L130 PetriNetUnfolder]: For 3798/3980 co-relation queries the response was YES. [2021-03-25 05:02:06,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 421 events. 177/421 cut-off events. For 3798/3980 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2535 event pairs, 16 based on Foata normal form. 20/417 useless extension candidates. Maximal degree in co-relation 2018. Up to 193 conditions per place. [2021-03-25 05:02:06,021 INFO L142 LiptonReduction]: Number of co-enabled transitions 644 [2021-03-25 05:02:06,046 INFO L154 LiptonReduction]: Checked pairs total: 736 [2021-03-25 05:02:06,047 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:06,047 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-25 05:02:06,048 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 76 transitions, 709 flow [2021-03-25 05:02:06,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:06,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:06,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:02:06,049 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:06,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:06,049 INFO L82 PathProgramCache]: Analyzing trace with hash -455756026, now seen corresponding path program 1 times [2021-03-25 05:02:06,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:06,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392029742] [2021-03-25 05:02:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:06,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:06,099 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:02:06,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:02:06,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:02:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:06,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392029742] [2021-03-25 05:02:06,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:06,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:02:06,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827710529] [2021-03-25 05:02:06,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:02:06,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:06,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:02:06,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:02:06,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 173 [2021-03-25 05:02:06,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 76 transitions, 709 flow. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:06,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 173 [2021-03-25 05:02:06,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:06,291 INFO L129 PetriNetUnfolder]: 369/811 cut-off events. [2021-03-25 05:02:06,291 INFO L130 PetriNetUnfolder]: For 4522/4882 co-relation queries the response was YES. [2021-03-25 05:02:06,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3028 conditions, 811 events. 369/811 cut-off events. For 4522/4882 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 5631 event pairs, 69 based on Foata normal form. 171/843 useless extension candidates. Maximal degree in co-relation 2996. Up to 435 conditions per place. [2021-03-25 05:02:06,299 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 13 selfloop transitions, 8 changer transitions 0/78 dead transitions. [2021-03-25 05:02:06,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 78 transitions, 678 flow [2021-03-25 05:02:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:02:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:02:06,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 730 transitions. [2021-03-25 05:02:06,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8439306358381503 [2021-03-25 05:02:06,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 730 transitions. [2021-03-25 05:02:06,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 730 transitions. [2021-03-25 05:02:06,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:06,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 730 transitions. [2021-03-25 05:02:06,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,306 INFO L185 Difference]: Start difference. First operand has 66 places, 76 transitions, 709 flow. Second operand 5 states and 730 transitions. [2021-03-25 05:02:06,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 78 transitions, 678 flow [2021-03-25 05:02:06,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 78 transitions, 648 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-25 05:02:06,317 INFO L241 Difference]: Finished difference. Result has 72 places, 74 transitions, 656 flow [2021-03-25 05:02:06,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=656, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2021-03-25 05:02:06,318 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2021-03-25 05:02:06,318 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:06,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 74 transitions, 656 flow [2021-03-25 05:02:06,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 74 transitions, 656 flow [2021-03-25 05:02:06,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 74 transitions, 656 flow [2021-03-25 05:02:06,407 INFO L129 PetriNetUnfolder]: 270/646 cut-off events. [2021-03-25 05:02:06,407 INFO L130 PetriNetUnfolder]: For 4027/4244 co-relation queries the response was YES. [2021-03-25 05:02:06,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 646 events. 270/646 cut-off events. For 4027/4244 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4441 event pairs, 49 based on Foata normal form. 57/661 useless extension candidates. Maximal degree in co-relation 2865. Up to 265 conditions per place. [2021-03-25 05:02:06,419 INFO L142 LiptonReduction]: Number of co-enabled transitions 742 [2021-03-25 05:02:06,430 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-25 05:02:06,430 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:06,430 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 05:02:06,432 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 656 flow [2021-03-25 05:02:06,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,432 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:06,432 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:06,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 05:02:06,432 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:06,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:06,433 INFO L82 PathProgramCache]: Analyzing trace with hash -213589895, now seen corresponding path program 1 times [2021-03-25 05:02:06,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:06,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031816747] [2021-03-25 05:02:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:06,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:06,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:06,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:02:06,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:02:06,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:02:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:06,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031816747] [2021-03-25 05:02:06,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:06,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:02:06,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323190935] [2021-03-25 05:02:06,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:02:06,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:06,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:02:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:02:06,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 173 [2021-03-25 05:02:06,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 656 flow. Second operand has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:06,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 173 [2021-03-25 05:02:06,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:06,635 INFO L129 PetriNetUnfolder]: 223/578 cut-off events. [2021-03-25 05:02:06,636 INFO L130 PetriNetUnfolder]: For 2932/4086 co-relation queries the response was YES. [2021-03-25 05:02:06,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2449 conditions, 578 events. 223/578 cut-off events. For 2932/4086 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 4151 event pairs, 9 based on Foata normal form. 363/869 useless extension candidates. Maximal degree in co-relation 2413. Up to 301 conditions per place. [2021-03-25 05:02:06,642 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 10 selfloop transitions, 15 changer transitions 3/79 dead transitions. [2021-03-25 05:02:06,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 79 transitions, 702 flow [2021-03-25 05:02:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:02:06,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:02:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1022 transitions. [2021-03-25 05:02:06,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8439306358381503 [2021-03-25 05:02:06,645 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1022 transitions. [2021-03-25 05:02:06,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1022 transitions. [2021-03-25 05:02:06,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:06,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1022 transitions. [2021-03-25 05:02:06,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,650 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,650 INFO L185 Difference]: Start difference. First operand has 72 places, 74 transitions, 656 flow. Second operand 7 states and 1022 transitions. [2021-03-25 05:02:06,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 79 transitions, 702 flow [2021-03-25 05:02:06,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 691 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:02:06,657 INFO L241 Difference]: Finished difference. Result has 79 places, 74 transitions, 680 flow [2021-03-25 05:02:06,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=680, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2021-03-25 05:02:06,658 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2021-03-25 05:02:06,658 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:06,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 74 transitions, 680 flow [2021-03-25 05:02:06,658 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 74 transitions, 680 flow [2021-03-25 05:02:06,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 680 flow [2021-03-25 05:02:06,700 INFO L129 PetriNetUnfolder]: 128/403 cut-off events. [2021-03-25 05:02:06,700 INFO L130 PetriNetUnfolder]: For 2238/2554 co-relation queries the response was YES. [2021-03-25 05:02:06,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 403 events. 128/403 cut-off events. For 2238/2554 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2825 event pairs, 8 based on Foata normal form. 31/415 useless extension candidates. Maximal degree in co-relation 1873. Up to 187 conditions per place. [2021-03-25 05:02:06,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 752 [2021-03-25 05:02:06,716 INFO L154 LiptonReduction]: Checked pairs total: 22 [2021-03-25 05:02:06,716 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:06,716 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 05:02:06,716 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 680 flow [2021-03-25 05:02:06,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:06,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:06,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 05:02:06,717 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash -35779595, now seen corresponding path program 1 times [2021-03-25 05:02:06,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:06,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391195876] [2021-03-25 05:02:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:06,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:02:06,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:02:06,836 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size [2021-03-25 05:02:06,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 05:02:06,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:02:06,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:06,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 05:02:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:06,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391195876] [2021-03-25 05:02:06,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:06,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:02:06,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432936620] [2021-03-25 05:02:06,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:02:06,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:06,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:02:06,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:02:06,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 173 [2021-03-25 05:02:06,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 680 flow. Second operand has 7 states, 7 states have (on average 122.85714285714286) internal successors, (860), 7 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:06,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:06,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 173 [2021-03-25 05:02:06,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:07,098 INFO L129 PetriNetUnfolder]: 153/481 cut-off events. [2021-03-25 05:02:07,098 INFO L130 PetriNetUnfolder]: For 3237/3755 co-relation queries the response was YES. [2021-03-25 05:02:07,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 481 events. 153/481 cut-off events. For 3237/3755 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 3573 event pairs, 16 based on Foata normal form. 101/553 useless extension candidates. Maximal degree in co-relation 2403. Up to 236 conditions per place. [2021-03-25 05:02:07,103 INFO L132 encePairwiseOnDemand]: 166/173 looper letters, 20 selfloop transitions, 28 changer transitions 0/79 dead transitions. [2021-03-25 05:02:07,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 836 flow [2021-03-25 05:02:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:02:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:02:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2021-03-25 05:02:07,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7294797687861272 [2021-03-25 05:02:07,105 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2021-03-25 05:02:07,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2021-03-25 05:02:07,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:07,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2021-03-25 05:02:07,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,109 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,109 INFO L185 Difference]: Start difference. First operand has 79 places, 74 transitions, 680 flow. Second operand 5 states and 631 transitions. [2021-03-25 05:02:07,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 836 flow [2021-03-25 05:02:07,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 801 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-03-25 05:02:07,122 INFO L241 Difference]: Finished difference. Result has 82 places, 76 transitions, 753 flow [2021-03-25 05:02:07,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=753, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2021-03-25 05:02:07,122 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 34 predicate places. [2021-03-25 05:02:07,123 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:07,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 76 transitions, 753 flow [2021-03-25 05:02:07,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 76 transitions, 753 flow [2021-03-25 05:02:07,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 76 transitions, 753 flow [2021-03-25 05:02:07,169 INFO L129 PetriNetUnfolder]: 143/454 cut-off events. [2021-03-25 05:02:07,169 INFO L130 PetriNetUnfolder]: For 2432/2579 co-relation queries the response was YES. [2021-03-25 05:02:07,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 454 events. 143/454 cut-off events. For 2432/2579 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3369 event pairs, 6 based on Foata normal form. 39/472 useless extension candidates. Maximal degree in co-relation 1995. Up to 102 conditions per place. [2021-03-25 05:02:07,177 INFO L142 LiptonReduction]: Number of co-enabled transitions 786 [2021-03-25 05:02:07,191 INFO L154 LiptonReduction]: Checked pairs total: 22 [2021-03-25 05:02:07,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:02:07,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 05:02:07,191 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 753 flow [2021-03-25 05:02:07,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 122.85714285714286) internal successors, (860), 7 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:07,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:07,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 05:02:07,192 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2020158054, now seen corresponding path program 1 times [2021-03-25 05:02:07,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:07,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411423163] [2021-03-25 05:02:07,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:07,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:07,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:07,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:07,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:07,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:07,255 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:02:07,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:02:07,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:07,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:02:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411423163] [2021-03-25 05:02:07,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:07,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:02:07,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435756523] [2021-03-25 05:02:07,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:02:07,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:07,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:02:07,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:02:07,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 173 [2021-03-25 05:02:07,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 753 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:07,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 173 [2021-03-25 05:02:07,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:07,413 INFO L129 PetriNetUnfolder]: 203/553 cut-off events. [2021-03-25 05:02:07,413 INFO L130 PetriNetUnfolder]: For 2867/4128 co-relation queries the response was YES. [2021-03-25 05:02:07,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 553 events. 203/553 cut-off events. For 2867/4128 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 4150 event pairs, 0 based on Foata normal form. 370/846 useless extension candidates. Maximal degree in co-relation 2338. Up to 144 conditions per place. [2021-03-25 05:02:07,419 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 5 selfloop transitions, 19 changer transitions 4/78 dead transitions. [2021-03-25 05:02:07,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 78 transitions, 780 flow [2021-03-25 05:02:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 05:02:07,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 05:02:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1308 transitions. [2021-03-25 05:02:07,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8400770712909441 [2021-03-25 05:02:07,423 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1308 transitions. [2021-03-25 05:02:07,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1308 transitions. [2021-03-25 05:02:07,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:07,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1308 transitions. [2021-03-25 05:02:07,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 145.33333333333334) internal successors, (1308), 9 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,429 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:07,430 INFO L185 Difference]: Start difference. First operand has 82 places, 76 transitions, 753 flow. Second operand 9 states and 1308 transitions. [2021-03-25 05:02:07,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 78 transitions, 780 flow [2021-03-25 05:02:07,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 78 transitions, 683 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-25 05:02:07,442 INFO L241 Difference]: Finished difference. Result has 84 places, 72 transitions, 652 flow [2021-03-25 05:02:07,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=652, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2021-03-25 05:02:07,443 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 36 predicate places. [2021-03-25 05:02:07,443 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:07,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 72 transitions, 652 flow [2021-03-25 05:02:07,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 72 transitions, 652 flow [2021-03-25 05:02:07,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 72 transitions, 652 flow [2021-03-25 05:02:07,481 INFO L129 PetriNetUnfolder]: 113/390 cut-off events. [2021-03-25 05:02:07,481 INFO L130 PetriNetUnfolder]: For 1486/1614 co-relation queries the response was YES. [2021-03-25 05:02:07,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 390 events. 113/390 cut-off events. For 1486/1614 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 2930 event pairs, 0 based on Foata normal form. 18/391 useless extension candidates. Maximal degree in co-relation 1711. Up to 95 conditions per place. [2021-03-25 05:02:07,488 INFO L142 LiptonReduction]: Number of co-enabled transitions 766 [2021-03-25 05:02:07,827 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 05:02:07,954 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-25 05:02:08,571 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 192 [2021-03-25 05:02:08,794 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 05:02:10,184 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 347 DAG size of output: 268 [2021-03-25 05:02:10,707 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-25 05:02:10,714 INFO L154 LiptonReduction]: Checked pairs total: 145 [2021-03-25 05:02:10,714 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 05:02:10,714 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3271 [2021-03-25 05:02:10,715 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 67 transitions, 622 flow [2021-03-25 05:02:10,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:10,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:10,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:10,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 05:02:10,715 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:10,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:10,716 INFO L82 PathProgramCache]: Analyzing trace with hash -793537142, now seen corresponding path program 1 times [2021-03-25 05:02:10,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:10,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719336360] [2021-03-25 05:02:10,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:10,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:10,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:02:10,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:10,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:02:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:10,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719336360] [2021-03-25 05:02:10,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:10,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:02:10,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606778506] [2021-03-25 05:02:10,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:02:10,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:10,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:02:10,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:02:10,786 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2021-03-25 05:02:10,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 67 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:10,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:10,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2021-03-25 05:02:10,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:10,831 INFO L129 PetriNetUnfolder]: 100/284 cut-off events. [2021-03-25 05:02:10,831 INFO L130 PetriNetUnfolder]: For 1906/1981 co-relation queries the response was YES. [2021-03-25 05:02:10,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1357 conditions, 284 events. 100/284 cut-off events. For 1906/1981 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1670 event pairs, 1 based on Foata normal form. 20/294 useless extension candidates. Maximal degree in co-relation 1317. Up to 99 conditions per place. [2021-03-25 05:02:10,834 INFO L132 encePairwiseOnDemand]: 172/175 looper letters, 2 selfloop transitions, 2 changer transitions 27/61 dead transitions. [2021-03-25 05:02:10,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 61 transitions, 577 flow [2021-03-25 05:02:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:02:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:02:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2021-03-25 05:02:10,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8685714285714285 [2021-03-25 05:02:10,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2021-03-25 05:02:10,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2021-03-25 05:02:10,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:10,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2021-03-25 05:02:10,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:10,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:10,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:10,839 INFO L185 Difference]: Start difference. First operand has 81 places, 67 transitions, 622 flow. Second operand 3 states and 456 transitions. [2021-03-25 05:02:10,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 61 transitions, 577 flow [2021-03-25 05:02:10,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 61 transitions, 529 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-25 05:02:10,845 INFO L241 Difference]: Finished difference. Result has 67 places, 34 transitions, 245 flow [2021-03-25 05:02:10,845 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=67, PETRI_TRANSITIONS=34} [2021-03-25 05:02:10,845 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2021-03-25 05:02:10,845 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:10,845 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 34 transitions, 245 flow [2021-03-25 05:02:10,846 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 34 transitions, 245 flow [2021-03-25 05:02:10,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 34 transitions, 245 flow [2021-03-25 05:02:10,852 INFO L129 PetriNetUnfolder]: 15/53 cut-off events. [2021-03-25 05:02:10,852 INFO L130 PetriNetUnfolder]: For 155/163 co-relation queries the response was YES. [2021-03-25 05:02:10,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 53 events. 15/53 cut-off events. For 155/163 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 129 event pairs, 1 based on Foata normal form. 3/55 useless extension candidates. Maximal degree in co-relation 192. Up to 16 conditions per place. [2021-03-25 05:02:10,853 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-25 05:02:11,083 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 05:02:11,500 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 05:02:11,616 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 05:02:11,775 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 05:02:11,996 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 85 [2021-03-25 05:02:12,261 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 05:02:12,664 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-25 05:02:12,781 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 05:02:12,977 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 05:02:13,411 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-25 05:02:13,545 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 05:02:13,658 INFO L154 LiptonReduction]: Checked pairs total: 53 [2021-03-25 05:02:13,658 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 05:02:13,658 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2813 [2021-03-25 05:02:13,658 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 261 flow [2021-03-25 05:02:13,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:13,659 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:13,659 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:13,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 05:02:13,659 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash 560169394, now seen corresponding path program 1 times [2021-03-25 05:02:13,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:13,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666154981] [2021-03-25 05:02:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:02:13,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:13,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:02:13,723 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-25 05:02:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 05:02:13,753 INFO L142 QuantifierPusher]: treesize reduction 22, result has 80.9 percent of original size [2021-03-25 05:02:13,755 INFO L147 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size 84 [2021-03-25 05:02:13,808 INFO L142 QuantifierPusher]: treesize reduction 22, result has 81.5 percent of original size [2021-03-25 05:02:13,810 INFO L147 QuantifierPusher]: treesize reduction 9, result has 90.7 percent of original size 88 [2021-03-25 05:02:13,864 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-03-25 05:02:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 05:02:13,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:02:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:02:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:02:13,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666154981] [2021-03-25 05:02:13,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:02:13,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 05:02:13,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556997324] [2021-03-25 05:02:13,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 05:02:13,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:02:13,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 05:02:13,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 05:02:13,909 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 182 [2021-03-25 05:02:13,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 261 flow. Second operand has 8 states, 8 states have (on average 119.875) internal successors, (959), 8 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:13,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:02:13,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 182 [2021-03-25 05:02:13,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:02:14,078 INFO L129 PetriNetUnfolder]: 27/89 cut-off events. [2021-03-25 05:02:14,078 INFO L130 PetriNetUnfolder]: For 454/518 co-relation queries the response was YES. [2021-03-25 05:02:14,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 89 events. 27/89 cut-off events. For 454/518 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 329 event pairs, 0 based on Foata normal form. 26/108 useless extension candidates. Maximal degree in co-relation 363. Up to 29 conditions per place. [2021-03-25 05:02:14,079 INFO L132 encePairwiseOnDemand]: 173/182 looper letters, 11 selfloop transitions, 9 changer transitions 4/41 dead transitions. [2021-03-25 05:02:14,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 41 transitions, 411 flow [2021-03-25 05:02:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:02:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:02:14,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2021-03-25 05:02:14,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6703296703296703 [2021-03-25 05:02:14,082 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2021-03-25 05:02:14,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2021-03-25 05:02:14,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:02:14,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2021-03-25 05:02:14,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:14,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:14,087 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:14,087 INFO L185 Difference]: Start difference. First operand has 59 places, 32 transitions, 261 flow. Second operand 7 states and 854 transitions. [2021-03-25 05:02:14,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 41 transitions, 411 flow [2021-03-25 05:02:14,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 41 transitions, 273 flow, removed 45 selfloop flow, removed 16 redundant places. [2021-03-25 05:02:14,090 INFO L241 Difference]: Finished difference. Result has 53 places, 35 transitions, 228 flow [2021-03-25 05:02:14,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=228, PETRI_PLACES=53, PETRI_TRANSITIONS=35} [2021-03-25 05:02:14,090 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-25 05:02:14,090 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:02:14,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 35 transitions, 228 flow [2021-03-25 05:02:14,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 35 transitions, 228 flow [2021-03-25 05:02:14,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 35 transitions, 228 flow [2021-03-25 05:02:14,098 INFO L129 PetriNetUnfolder]: 19/65 cut-off events. [2021-03-25 05:02:14,098 INFO L130 PetriNetUnfolder]: For 131/132 co-relation queries the response was YES. [2021-03-25 05:02:14,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 65 events. 19/65 cut-off events. For 131/132 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 228 event pairs, 0 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 205. Up to 21 conditions per place. [2021-03-25 05:02:14,099 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 05:02:14,340 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-03-25 05:02:14,752 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2021-03-25 05:02:14,904 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 05:02:15,104 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 05:02:15,556 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-25 05:02:15,705 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-25 05:02:15,707 INFO L154 LiptonReduction]: Checked pairs total: 22 [2021-03-25 05:02:15,707 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 05:02:15,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1617 [2021-03-25 05:02:15,707 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 232 flow [2021-03-25 05:02:15,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 119.875) internal successors, (959), 8 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:02:15,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:02:15,708 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:02:15,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 05:02:15,708 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:02:15,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:02:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash 637082994, now seen corresponding path program 1 times [2021-03-25 05:02:15,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:02:15,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780043060] [2021-03-25 05:02:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:02:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:02:15,734 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:02:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:02:15,760 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:02:15,809 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:02:15,809 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:02:15,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 05:02:15,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:02:15 BasicIcfg [2021-03-25 05:02:15,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:02:15,868 INFO L168 Benchmark]: Toolchain (without parser) took 30939.92 ms. Allocated memory was 255.9 MB in the beginning and 801.1 MB in the end (delta: 545.3 MB). Free memory was 232.9 MB in the beginning and 761.5 MB in the end (delta: -528.6 MB). Peak memory consumption was 481.4 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,868 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 165.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:02:15,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.20 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.9 MB in the beginning and 309.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.68 ms. Allocated memory is still 350.2 MB. Free memory was 309.5 MB in the beginning and 306.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,875 INFO L168 Benchmark]: Boogie Preprocessor took 54.99 ms. Allocated memory is still 350.2 MB. Free memory was 306.7 MB in the beginning and 304.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,875 INFO L168 Benchmark]: RCFGBuilder took 1673.94 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 304.6 MB in the beginning and 395.9 MB in the end (delta: -91.3 MB). Peak memory consumption was 68.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,876 INFO L168 Benchmark]: TraceAbstraction took 28541.76 ms. Allocated memory was 421.5 MB in the beginning and 801.1 MB in the end (delta: 379.6 MB). Free memory was 394.8 MB in the beginning and 761.5 MB in the end (delta: -366.7 MB). Peak memory consumption was 478.5 MB. Max. memory is 16.0 GB. [2021-03-25 05:02:15,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 165.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 584.20 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 232.9 MB in the beginning and 309.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.68 ms. Allocated memory is still 350.2 MB. Free memory was 309.5 MB in the beginning and 306.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 54.99 ms. Allocated memory is still 350.2 MB. Free memory was 306.7 MB in the beginning and 304.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1673.94 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 304.6 MB in the beginning and 395.9 MB in the end (delta: -91.3 MB). Peak memory consumption was 68.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28541.76 ms. Allocated memory was 421.5 MB in the beginning and 801.1 MB in the end (delta: 379.6 MB). Free memory was 394.8 MB in the beginning and 761.5 MB in the end (delta: -366.7 MB). Peak memory consumption was 478.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7303.8ms, 102 PlacesBefore, 48 PlacesAfterwards, 94 TransitionsBefore, 39 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3065 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1462, positive: 1378, positive conditional: 0, positive unconditional: 1378, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 803, positive: 783, positive conditional: 0, positive unconditional: 783, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 803, positive: 783, positive conditional: 0, positive unconditional: 783, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1462, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 803, unknown conditional: 0, unknown unconditional: 803] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2715.9ms, 45 PlacesBefore, 33 PlacesAfterwards, 32 TransitionsBefore, 24 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 246, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1020.4ms, 34 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 24 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 189, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 54, negative conditional: 0, negative unconditional: 54, 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: 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] , Cache Queries: [ total: 189, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6ms, 34 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 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] , Cache Queries: [ total: 59, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 37 PlacesBefore, 37 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 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] , Cache Queries: [ total: 54, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.7ms, 40 PlacesBefore, 40 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 61 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.0ms, 51 PlacesBefore, 51 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 242 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 71, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.4ms, 55 PlacesBefore, 55 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 66, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 925.9ms, 58 PlacesBefore, 58 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 731 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 283, positive conditional: 0, positive unconditional: 283, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3270.3ms, 61 PlacesBefore, 61 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 544 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 543 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197, positive: 168, positive conditional: 0, positive unconditional: 168, negative: 29, negative conditional: 0, negative unconditional: 29, 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: 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] , Cache Queries: [ total: 197, positive: 166, positive conditional: 0, positive unconditional: 166, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.5ms, 64 PlacesBefore, 64 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 588 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 357 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 118, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.4ms, 66 PlacesBefore, 66 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 644 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 310, positive: 281, positive conditional: 0, positive unconditional: 281, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 310, positive: 280, positive conditional: 0, positive unconditional: 280, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.9ms, 72 PlacesBefore, 72 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 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] , Cache Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.9ms, 79 PlacesBefore, 79 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 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] , Cache Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.9ms, 82 PlacesBefore, 82 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 786 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 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] , Cache Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3271.3ms, 84 PlacesBefore, 81 PlacesAfterwards, 72 TransitionsBefore, 67 TransitionsAfterwards, 766 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 145 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 113, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 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] , Cache Queries: [ total: 113, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2812.4ms, 67 PlacesBefore, 59 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 4 FixpointIterations, 2 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 53 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1616.5ms, 53 PlacesBefore, 51 PlacesAfterwards, 35 TransitionsBefore, 34 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff1_thd0; [L727] 0 _Bool z$r_buff1_thd1; [L728] 0 _Bool z$r_buff1_thd2; [L729] 0 _Bool z$r_buff1_thd3; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t2037; [L819] FCALL, FORK 0 pthread_create(&t2037, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L741] 1 z$w_buff1 = z$w_buff0 [L742] 1 z$w_buff0 = 2 [L743] 1 z$w_buff1_used = z$w_buff0_used [L744] 1 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L746] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L747] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L748] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L749] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L750] 1 z$r_buff0_thd1 = (_Bool)1 [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L820] 0 pthread_t t2038; [L821] FCALL, FORK 0 pthread_create(&t2038, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 2 [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L822] 0 pthread_t t2039; [L823] FCALL, FORK 0 pthread_create(&t2039, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L776] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L776] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L776] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L777] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L777] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L778] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L778] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L779] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L779] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L780] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L790] 3 __unbuffered_p2_EAX = y [L793] 3 z = 1 [L796] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L796] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L796] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L796] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L797] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L797] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L798] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L798] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L799] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L799] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L800] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L800] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L756] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L829] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L829] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L829] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L829] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L830] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L830] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L831] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L831] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L832] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L832] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L833] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L833] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 z$flush_delayed = weak$$choice2 [L839] 0 z$mem_tmp = z [L840] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L840] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L841] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L841] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L842] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L842] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L843] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L843] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L845] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p2_EAX == 1) [L848] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L848] 0 z = z$flush_delayed ? z$mem_tmp : z [L849] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=54, weak$$choice2=255, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28380.0ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2397.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7367.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 80 SDtfs, 28 SDslu, 28 SDs, 0 SdLazy, 531 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 679.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 733.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=14, InterpolantAutomatonStates: 82, 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: 63.2ms SsaConstructionTime, 559.9ms SatisfiabilityAnalysisTime, 1500.0ms InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 2277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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...