/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:46:59,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:46:59,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:46:59,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:46:59,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:46:59,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:46:59,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:46:59,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:46:59,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:46:59,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:46:59,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:46:59,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:46:59,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:46:59,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:46:59,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:46:59,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:46:59,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:46:59,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:46:59,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:46:59,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:46:59,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:46:59,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:46:59,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:46:59,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:46:59,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:46:59,738 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:46:59,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:46:59,738 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:46:59,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:46:59,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:46:59,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:46:59,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:46:59,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:46:59,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:46:59,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:47:00,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:47:00,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:47:00,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:47:00,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:47:00,039 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:47:00,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-26 00:47:00,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f91a1ff/88785a943f30410ba84509ce06c27066/FLAG442ffc3a0 [2021-03-26 00:47:00,630 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:47:00,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-26 00:47:00,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f91a1ff/88785a943f30410ba84509ce06c27066/FLAG442ffc3a0 [2021-03-26 00:47:01,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f91a1ff/88785a943f30410ba84509ce06c27066 [2021-03-26 00:47:01,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:47:01,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:47:01,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:01,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:47:01,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:47:01,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74204e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01, skipping insertion in model container [2021-03-26 00:47:01,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:47:01,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:47:01,319 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/safe027_pso.oepc.i[950,963] [2021-03-26 00:47:01,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:01,501 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:47:01,512 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/safe027_pso.oepc.i[950,963] [2021-03-26 00:47:01,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:01,624 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:47:01,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01 WrapperNode [2021-03-26 00:47:01,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:01,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:01,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:47:01,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:47:01,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:01,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:47:01,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:47:01,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:47:01,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (1/1) ... [2021-03-26 00:47:01,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:47:01,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:47:01,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:47:01,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:47:01,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (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 [2021-03-26 00:47:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:47:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:47:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:47:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:47:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:47:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:47:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:47:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:47:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:47:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:47:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:47:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:47:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:47:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:47:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:47:01,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:47:01,802 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:47:02,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:47:02,112 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:47:02,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:02 BoogieIcfgContainer [2021-03-26 00:47:02,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:47:02,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:47:02,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:47:02,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:47:02,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:47:01" (1/3) ... [2021-03-26 00:47:02,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712ba2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:02, skipping insertion in model container [2021-03-26 00:47:02,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:01" (2/3) ... [2021-03-26 00:47:02,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712ba2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:02, skipping insertion in model container [2021-03-26 00:47:02,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:02" (3/3) ... [2021-03-26 00:47:02,120 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-03-26 00:47:02,124 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:47:02,128 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:47:02,128 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:47:02,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,162 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,163 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,163 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,165 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,166 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,167 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,168 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,169 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,172 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,175 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,176 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,176 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:02,178 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:47:02,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:47:02,210 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:47:02,211 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:47:02,211 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:47:02,211 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:47:02,211 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:47:02,211 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:47:02,211 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:47:02,211 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:47:02,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:02,271 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-26 00:47:02,271 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:02,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 00:47:02,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:02,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:02,279 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:02,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:02,293 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:02,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:02,309 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-26 00:47:02,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:02,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 00:47:02,312 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 00:47:03,702 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-26 00:47:03,703 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 00:47:03,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1427 [2021-03-26 00:47:03,727 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:47:03,727 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:03,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:03,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:03,728 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:03,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:03,737 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-26 00:47:03,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:03,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152161862] [2021-03-26 00:47:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:03,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:03,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:03,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:03,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:03,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152161862] [2021-03-26 00:47:03,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:03,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:03,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309891532] [2021-03-26 00:47:03,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:03,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:03,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:03,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-26 00:47:03,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:03,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:03,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-26 00:47:03,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:04,007 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:04,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:04,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:04,009 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-26 00:47:04,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:04,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-26 00:47:04,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-26 00:47:04,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-26 00:47:04,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-26 00:47:04,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:04,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-26 00:47:04,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,050 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 361 transitions. [2021-03-26 00:47:04,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:04,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:04,054 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:04,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 00:47:04,057 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 00:47:04,057 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:04,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:04,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:04,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:04,062 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:04,062 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:47:04,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:04,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:47:04,678 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-26 00:47:04,678 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:47:04,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 621 [2021-03-26 00:47:04,680 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-26 00:47:04,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:04,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:04,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:47:04,681 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:04,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1195981847, now seen corresponding path program 1 times [2021-03-26 00:47:04,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:04,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924542138] [2021-03-26 00:47:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:04,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:04,773 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:04,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:04,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924542138] [2021-03-26 00:47:04,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:04,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:04,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760740611] [2021-03-26 00:47:04,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:04,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:04,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:04,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:04,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-26 00:47:04,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:04,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-26 00:47:04,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:04,851 INFO L129 PetriNetUnfolder]: 38/105 cut-off events. [2021-03-26 00:47:04,852 INFO L130 PetriNetUnfolder]: For 22/48 co-relation queries the response was YES. [2021-03-26 00:47:04,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 105 events. 38/105 cut-off events. For 22/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 389 event pairs, 3 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 202. Up to 43 conditions per place. [2021-03-26 00:47:04,855 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 12 changer transitions 0/35 dead transitions. [2021-03-26 00:47:04,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-26 00:47:04,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-26 00:47:04,858 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-26 00:47:04,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-26 00:47:04,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:04,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-26 00:47:04,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,864 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:04,864 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 5 states and 544 transitions. [2021-03-26 00:47:04,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:04,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:04,866 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:04,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 00:47:04,867 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:04,867 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:04,867 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:04,868 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:04,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:04,885 INFO L129 PetriNetUnfolder]: 29/93 cut-off events. [2021-03-26 00:47:04,885 INFO L130 PetriNetUnfolder]: For 32/59 co-relation queries the response was YES. [2021-03-26 00:47:04,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 93 events. 29/93 cut-off events. For 32/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 353 event pairs, 12 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 237. Up to 49 conditions per place. [2021-03-26 00:47:04,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 00:47:05,056 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:05,280 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:05,345 INFO L154 LiptonReduction]: Checked pairs total: 238 [2021-03-26 00:47:05,345 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:05,346 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 479 [2021-03-26 00:47:05,347 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 132 flow [2021-03-26 00:47:05,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:05,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:05,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:47:05,348 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1825769221, now seen corresponding path program 1 times [2021-03-26 00:47:05,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:05,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398476104] [2021-03-26 00:47:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:05,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:05,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:05,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398476104] [2021-03-26 00:47:05,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:05,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342362474] [2021-03-26 00:47:05,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:05,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:05,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:05,400 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-03-26 00:47:05,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:05,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-03-26 00:47:05,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:05,426 INFO L129 PetriNetUnfolder]: 25/87 cut-off events. [2021-03-26 00:47:05,426 INFO L130 PetriNetUnfolder]: For 129/241 co-relation queries the response was YES. [2021-03-26 00:47:05,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 87 events. 25/87 cut-off events. For 129/241 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 309 event pairs, 3 based on Foata normal form. 8/89 useless extension candidates. Maximal degree in co-relation 254. Up to 42 conditions per place. [2021-03-26 00:47:05,427 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 4 selfloop transitions, 5 changer transitions 6/32 dead transitions. [2021-03-26 00:47:05,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 177 flow [2021-03-26 00:47:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2021-03-26 00:47:05,429 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8419117647058824 [2021-03-26 00:47:05,429 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2021-03-26 00:47:05,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2021-03-26 00:47:05,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:05,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2021-03-26 00:47:05,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,432 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,432 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 132 flow. Second operand 4 states and 458 transitions. [2021-03-26 00:47:05,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 177 flow [2021-03-26 00:47:05,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 169 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:05,434 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:05,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-26 00:47:05,434 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:47:05,434 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:05,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:05,435 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:05,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:05,440 INFO L129 PetriNetUnfolder]: 12/47 cut-off events. [2021-03-26 00:47:05,440 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-26 00:47:05,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 47 events. 12/47 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 111 event pairs, 9 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 137. Up to 27 conditions per place. [2021-03-26 00:47:05,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:47:05,468 INFO L154 LiptonReduction]: Checked pairs total: 133 [2021-03-26 00:47:05,468 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:05,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 00:47:05,469 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:05,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:05,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:05,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:47:05,470 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:05,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1641210075, now seen corresponding path program 1 times [2021-03-26 00:47:05,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:05,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491460720] [2021-03-26 00:47:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:05,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:05,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491460720] [2021-03-26 00:47:05,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:05,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:47:05,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055930970] [2021-03-26 00:47:05,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:05,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:05,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:05,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:05,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 137 [2021-03-26 00:47:05,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:05,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 137 [2021-03-26 00:47:05,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:05,517 INFO L129 PetriNetUnfolder]: 9/41 cut-off events. [2021-03-26 00:47:05,517 INFO L130 PetriNetUnfolder]: For 68/71 co-relation queries the response was YES. [2021-03-26 00:47:05,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 41 events. 9/41 cut-off events. For 68/71 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 79 event pairs, 3 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 123. Up to 21 conditions per place. [2021-03-26 00:47:05,518 INFO L132 encePairwiseOnDemand]: 134/137 looper letters, 1 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2021-03-26 00:47:05,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 24 transitions, 130 flow [2021-03-26 00:47:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2021-03-26 00:47:05,520 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9002433090024331 [2021-03-26 00:47:05,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2021-03-26 00:47:05,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2021-03-26 00:47:05,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:05,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2021-03-26 00:47:05,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,523 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 120 flow. Second operand 3 states and 370 transitions. [2021-03-26 00:47:05,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 24 transitions, 130 flow [2021-03-26 00:47:05,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 106 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-26 00:47:05,525 INFO L241 Difference]: Finished difference. Result has 38 places, 24 transitions, 110 flow [2021-03-26 00:47:05,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2021-03-26 00:47:05,525 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:05,525 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:05,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 24 transitions, 110 flow [2021-03-26 00:47:05,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 24 transitions, 110 flow [2021-03-26 00:47:05,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 24 transitions, 110 flow [2021-03-26 00:47:05,529 INFO L129 PetriNetUnfolder]: 9/42 cut-off events. [2021-03-26 00:47:05,530 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 00:47:05,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 42 events. 9/42 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 88 event pairs, 3 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 111. Up to 22 conditions per place. [2021-03-26 00:47:05,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:47:05,542 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-26 00:47:05,542 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:05,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 00:47:05,545 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 110 flow [2021-03-26 00:47:05,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:05,546 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:05,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:47:05,546 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:05,547 INFO L82 PathProgramCache]: Analyzing trace with hash -642501982, now seen corresponding path program 1 times [2021-03-26 00:47:05,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:05,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502140903] [2021-03-26 00:47:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:05,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:05,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502140903] [2021-03-26 00:47:05,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:05,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:05,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122659686] [2021-03-26 00:47:05,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:05,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:05,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:05,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:05,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 137 [2021-03-26 00:47:05,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 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) [2021-03-26 00:47:05,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:05,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 137 [2021-03-26 00:47:05,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:05,649 INFO L129 PetriNetUnfolder]: 18/72 cut-off events. [2021-03-26 00:47:05,649 INFO L130 PetriNetUnfolder]: For 125/132 co-relation queries the response was YES. [2021-03-26 00:47:05,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 72 events. 18/72 cut-off events. For 125/132 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 255 event pairs, 4 based on Foata normal form. 9/77 useless extension candidates. Maximal degree in co-relation 216. Up to 36 conditions per place. [2021-03-26 00:47:05,650 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 5 selfloop transitions, 5 changer transitions 5/31 dead transitions. [2021-03-26 00:47:05,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 190 flow [2021-03-26 00:47:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions. [2021-03-26 00:47:05,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8485401459854015 [2021-03-26 00:47:05,652 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 465 transitions. [2021-03-26 00:47:05,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions. [2021-03-26 00:47:05,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:05,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions. [2021-03-26 00:47:05,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,655 INFO L185 Difference]: Start difference. First operand has 38 places, 24 transitions, 110 flow. Second operand 4 states and 465 transitions. [2021-03-26 00:47:05,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 190 flow [2021-03-26 00:47:05,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:05,661 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 122 flow [2021-03-26 00:47:05,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-26 00:47:05,661 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:47:05,661 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:05,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 122 flow [2021-03-26 00:47:05,662 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 122 flow [2021-03-26 00:47:05,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 122 flow [2021-03-26 00:47:05,667 INFO L129 PetriNetUnfolder]: 9/42 cut-off events. [2021-03-26 00:47:05,667 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2021-03-26 00:47:05,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 42 events. 9/42 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 93 event pairs, 3 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 125. Up to 22 conditions per place. [2021-03-26 00:47:05,668 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 00:47:05,669 INFO L154 LiptonReduction]: Checked pairs total: 50 [2021-03-26 00:47:05,670 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:05,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 00:47:05,672 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 122 flow [2021-03-26 00:47:05,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 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) [2021-03-26 00:47:05,672 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:05,672 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:05,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:47:05,673 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:05,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:05,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1308198398, now seen corresponding path program 1 times [2021-03-26 00:47:05,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:05,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250950911] [2021-03-26 00:47:05,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:05,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:05,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,746 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:05,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250950911] [2021-03-26 00:47:05,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:05,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:05,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209376237] [2021-03-26 00:47:05,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:05,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:05,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:05,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:05,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2021-03-26 00:47:05,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:05,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2021-03-26 00:47:05,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:05,803 INFO L129 PetriNetUnfolder]: 9/53 cut-off events. [2021-03-26 00:47:05,803 INFO L130 PetriNetUnfolder]: For 67/73 co-relation queries the response was YES. [2021-03-26 00:47:05,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 53 events. 9/53 cut-off events. For 67/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 142 event pairs, 1 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 180. Up to 26 conditions per place. [2021-03-26 00:47:05,804 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 4 selfloop transitions, 11 changer transitions 0/29 dead transitions. [2021-03-26 00:47:05,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 185 flow [2021-03-26 00:47:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-03-26 00:47:05,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7795620437956204 [2021-03-26 00:47:05,807 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-03-26 00:47:05,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-03-26 00:47:05,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:05,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-03-26 00:47:05,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,814 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,814 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 122 flow. Second operand 5 states and 534 transitions. [2021-03-26 00:47:05,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 185 flow [2021-03-26 00:47:05,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 164 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:05,816 INFO L241 Difference]: Finished difference. Result has 43 places, 29 transitions, 180 flow [2021-03-26 00:47:05,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2021-03-26 00:47:05,816 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2021-03-26 00:47:05,817 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:05,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 29 transitions, 180 flow [2021-03-26 00:47:05,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 29 transitions, 180 flow [2021-03-26 00:47:05,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 29 transitions, 180 flow [2021-03-26 00:47:05,826 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-03-26 00:47:05,826 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-03-26 00:47:05,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 55 events. 9/55 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 1 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 177. Up to 27 conditions per place. [2021-03-26 00:47:05,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 00:47:05,830 INFO L154 LiptonReduction]: Checked pairs total: 104 [2021-03-26 00:47:05,830 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:05,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:47:05,832 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 180 flow [2021-03-26 00:47:05,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:05,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:05,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:47:05,833 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:05,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:05,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1529580015, now seen corresponding path program 1 times [2021-03-26 00:47:05,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:05,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724277714] [2021-03-26 00:47:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:05,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:05,903 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:05,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:05,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724277714] [2021-03-26 00:47:05,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:05,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:05,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274546053] [2021-03-26 00:47:05,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:05,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:05,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:05,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:05,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2021-03-26 00:47:05,912 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,912 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:05,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2021-03-26 00:47:05,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:05,981 INFO L129 PetriNetUnfolder]: 251/457 cut-off events. [2021-03-26 00:47:05,981 INFO L130 PetriNetUnfolder]: For 1075/1423 co-relation queries the response was YES. [2021-03-26 00:47:05,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 457 events. 251/457 cut-off events. For 1075/1423 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 2359 event pairs, 114 based on Foata normal form. 43/455 useless extension candidates. Maximal degree in co-relation 1184. Up to 314 conditions per place. [2021-03-26 00:47:05,984 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 10 selfloop transitions, 10 changer transitions 0/42 dead transitions. [2021-03-26 00:47:05,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 246 flow [2021-03-26 00:47:05,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:05,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 557 transitions. [2021-03-26 00:47:05,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8131386861313868 [2021-03-26 00:47:05,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 557 transitions. [2021-03-26 00:47:05,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 557 transitions. [2021-03-26 00:47:05,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:05,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 557 transitions. [2021-03-26 00:47:05,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,990 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:05,990 INFO L185 Difference]: Start difference. First operand has 43 places, 29 transitions, 180 flow. Second operand 5 states and 557 transitions. [2021-03-26 00:47:05,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 246 flow [2021-03-26 00:47:05,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:47:05,992 INFO L241 Difference]: Finished difference. Result has 50 places, 38 transitions, 255 flow [2021-03-26 00:47:05,992 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=255, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2021-03-26 00:47:05,993 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:47:05,993 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:05,993 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 38 transitions, 255 flow [2021-03-26 00:47:05,993 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 38 transitions, 255 flow [2021-03-26 00:47:05,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 38 transitions, 255 flow [2021-03-26 00:47:06,030 INFO L129 PetriNetUnfolder]: 254/467 cut-off events. [2021-03-26 00:47:06,031 INFO L130 PetriNetUnfolder]: For 1161/1415 co-relation queries the response was YES. [2021-03-26 00:47:06,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 467 events. 254/467 cut-off events. For 1161/1415 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 2440 event pairs, 115 based on Foata normal form. 5/427 useless extension candidates. Maximal degree in co-relation 1574. Up to 370 conditions per place. [2021-03-26 00:47:06,048 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-26 00:47:06,059 INFO L154 LiptonReduction]: Checked pairs total: 15 [2021-03-26 00:47:06,059 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:06,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-26 00:47:06,064 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 249 flow [2021-03-26 00:47:06,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:06,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:06,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:47:06,065 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:06,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:06,065 INFO L82 PathProgramCache]: Analyzing trace with hash 172328868, now seen corresponding path program 1 times [2021-03-26 00:47:06,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:06,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770655393] [2021-03-26 00:47:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:06,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,124 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:06,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:06,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770655393] [2021-03-26 00:47:06,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:06,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:06,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888095797] [2021-03-26 00:47:06,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:06,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:06,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:06,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:06,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2021-03-26 00:47:06,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:06,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2021-03-26 00:47:06,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:06,214 INFO L129 PetriNetUnfolder]: 172/344 cut-off events. [2021-03-26 00:47:06,215 INFO L130 PetriNetUnfolder]: For 1726/2262 co-relation queries the response was YES. [2021-03-26 00:47:06,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 344 events. 172/344 cut-off events. For 1726/2262 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 1724 event pairs, 29 based on Foata normal form. 81/406 useless extension candidates. Maximal degree in co-relation 1430. Up to 284 conditions per place. [2021-03-26 00:47:06,218 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 10 selfloop transitions, 14 changer transitions 0/46 dead transitions. [2021-03-26 00:47:06,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 349 flow [2021-03-26 00:47:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:47:06,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:47:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2021-03-26 00:47:06,220 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8126520681265207 [2021-03-26 00:47:06,220 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 668 transitions. [2021-03-26 00:47:06,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 668 transitions. [2021-03-26 00:47:06,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:06,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 668 transitions. [2021-03-26 00:47:06,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.33333333333333) internal successors, (668), 6 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 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) [2021-03-26 00:47:06,224 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 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) [2021-03-26 00:47:06,224 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 249 flow. Second operand 6 states and 668 transitions. [2021-03-26 00:47:06,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 349 flow [2021-03-26 00:47:06,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 342 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:06,229 INFO L241 Difference]: Finished difference. Result has 54 places, 42 transitions, 338 flow [2021-03-26 00:47:06,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2021-03-26 00:47:06,230 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-26 00:47:06,230 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:06,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 42 transitions, 338 flow [2021-03-26 00:47:06,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 42 transitions, 338 flow [2021-03-26 00:47:06,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 42 transitions, 338 flow [2021-03-26 00:47:06,264 INFO L129 PetriNetUnfolder]: 174/352 cut-off events. [2021-03-26 00:47:06,264 INFO L130 PetriNetUnfolder]: For 1514/1854 co-relation queries the response was YES. [2021-03-26 00:47:06,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 352 events. 174/352 cut-off events. For 1514/1854 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 1932 event pairs, 29 based on Foata normal form. 14/348 useless extension candidates. Maximal degree in co-relation 1693. Up to 291 conditions per place. [2021-03-26 00:47:06,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-26 00:47:06,283 INFO L154 LiptonReduction]: Checked pairs total: 15 [2021-03-26 00:47:06,283 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:06,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 00:47:06,286 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 330 flow [2021-03-26 00:47:06,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:06,287 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:06,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:47:06,287 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:06,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:06,287 INFO L82 PathProgramCache]: Analyzing trace with hash -39032307, now seen corresponding path program 1 times [2021-03-26 00:47:06,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:06,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388308190] [2021-03-26 00:47:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:06,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,348 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:06,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388308190] [2021-03-26 00:47:06,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:06,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:06,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848104121] [2021-03-26 00:47:06,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:47:06,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:06,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:47:06,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:47:06,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2021-03-26 00:47:06,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:06,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2021-03-26 00:47:06,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:06,445 INFO L129 PetriNetUnfolder]: 94/215 cut-off events. [2021-03-26 00:47:06,445 INFO L130 PetriNetUnfolder]: For 1528/1927 co-relation queries the response was YES. [2021-03-26 00:47:06,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 215 events. 94/215 cut-off events. For 1528/1927 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 997 event pairs, 3 based on Foata normal form. 84/287 useless extension candidates. Maximal degree in co-relation 1160. Up to 177 conditions per place. [2021-03-26 00:47:06,447 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 6 selfloop transitions, 18 changer transitions 4/50 dead transitions. [2021-03-26 00:47:06,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 472 flow [2021-03-26 00:47:06,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:47:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:47:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 779 transitions. [2021-03-26 00:47:06,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8123044838373306 [2021-03-26 00:47:06,450 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 779 transitions. [2021-03-26 00:47:06,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 779 transitions. [2021-03-26 00:47:06,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:06,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 779 transitions. [2021-03-26 00:47:06,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.28571428571429) internal successors, (779), 7 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,454 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,454 INFO L185 Difference]: Start difference. First operand has 54 places, 41 transitions, 330 flow. Second operand 7 states and 779 transitions. [2021-03-26 00:47:06,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 472 flow [2021-03-26 00:47:06,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 410 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:06,458 INFO L241 Difference]: Finished difference. Result has 57 places, 46 transitions, 390 flow [2021-03-26 00:47:06,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=390, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2021-03-26 00:47:06,458 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2021-03-26 00:47:06,458 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:06,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 46 transitions, 390 flow [2021-03-26 00:47:06,459 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 46 transitions, 390 flow [2021-03-26 00:47:06,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 390 flow [2021-03-26 00:47:06,476 INFO L129 PetriNetUnfolder]: 89/212 cut-off events. [2021-03-26 00:47:06,477 INFO L130 PetriNetUnfolder]: For 763/800 co-relation queries the response was YES. [2021-03-26 00:47:06,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 212 events. 89/212 cut-off events. For 763/800 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1064 event pairs, 3 based on Foata normal form. 2/204 useless extension candidates. Maximal degree in co-relation 1008. Up to 161 conditions per place. [2021-03-26 00:47:06,479 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-26 00:47:06,489 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 00:47:06,489 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:06,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 00:47:06,490 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 380 flow [2021-03-26 00:47:06,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:06,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:06,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:47:06,491 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:06,491 INFO L82 PathProgramCache]: Analyzing trace with hash -2110412701, now seen corresponding path program 1 times [2021-03-26 00:47:06,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:06,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899316920] [2021-03-26 00:47:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:06,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:06,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:06,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899316920] [2021-03-26 00:47:06,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:06,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:06,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843823807] [2021-03-26 00:47:06,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:06,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:06,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:06,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:06,535 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2021-03-26 00:47:06,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 380 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:06,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2021-03-26 00:47:06,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:06,570 INFO L129 PetriNetUnfolder]: 82/187 cut-off events. [2021-03-26 00:47:06,570 INFO L130 PetriNetUnfolder]: For 801/871 co-relation queries the response was YES. [2021-03-26 00:47:06,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 187 events. 82/187 cut-off events. For 801/871 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 796 event pairs, 3 based on Foata normal form. 10/186 useless extension candidates. Maximal degree in co-relation 824. Up to 139 conditions per place. [2021-03-26 00:47:06,571 INFO L132 encePairwiseOnDemand]: 134/137 looper letters, 4 selfloop transitions, 2 changer transitions 12/43 dead transitions. [2021-03-26 00:47:06,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 373 flow [2021-03-26 00:47:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions. [2021-03-26 00:47:06,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8485401459854015 [2021-03-26 00:47:06,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 465 transitions. [2021-03-26 00:47:06,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions. [2021-03-26 00:47:06,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:06,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions. [2021-03-26 00:47:06,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,577 INFO L185 Difference]: Start difference. First operand has 57 places, 45 transitions, 380 flow. Second operand 4 states and 465 transitions. [2021-03-26 00:47:06,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 373 flow [2021-03-26 00:47:06,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 332 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:06,583 INFO L241 Difference]: Finished difference. Result has 55 places, 31 transitions, 215 flow [2021-03-26 00:47:06,583 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=215, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2021-03-26 00:47:06,583 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-26 00:47:06,584 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:06,584 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 31 transitions, 215 flow [2021-03-26 00:47:06,584 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 31 transitions, 215 flow [2021-03-26 00:47:06,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 31 transitions, 215 flow [2021-03-26 00:47:06,590 INFO L129 PetriNetUnfolder]: 23/80 cut-off events. [2021-03-26 00:47:06,591 INFO L130 PetriNetUnfolder]: For 153/168 co-relation queries the response was YES. [2021-03-26 00:47:06,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 80 events. 23/80 cut-off events. For 153/168 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 261 event pairs, 2 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 278. Up to 34 conditions per place. [2021-03-26 00:47:06,592 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 00:47:06,868 INFO L154 LiptonReduction]: Checked pairs total: 42 [2021-03-26 00:47:06,868 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 00:47:06,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 285 [2021-03-26 00:47:06,869 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 242 flow [2021-03-26 00:47:06,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:06,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:06,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:47:06,869 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:06,870 INFO L82 PathProgramCache]: Analyzing trace with hash 412407746, now seen corresponding path program 1 times [2021-03-26 00:47:06,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:06,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095644464] [2021-03-26 00:47:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:06,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:06,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:06,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:06,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095644464] [2021-03-26 00:47:06,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:06,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:06,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905088606] [2021-03-26 00:47:06,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:06,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:06,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:06,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:06,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 144 [2021-03-26 00:47:06,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-03-26 00:47:06,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:06,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 144 [2021-03-26 00:47:06,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:06,945 INFO L129 PetriNetUnfolder]: 20/70 cut-off events. [2021-03-26 00:47:06,945 INFO L130 PetriNetUnfolder]: For 336/363 co-relation queries the response was YES. [2021-03-26 00:47:06,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 70 events. 20/70 cut-off events. For 336/363 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 216 event pairs, 0 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 257. Up to 28 conditions per place. [2021-03-26 00:47:06,946 INFO L132 encePairwiseOnDemand]: 141/144 looper letters, 4 selfloop transitions, 1 changer transitions 5/29 dead transitions. [2021-03-26 00:47:06,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 29 transitions, 237 flow [2021-03-26 00:47:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:06,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 3 states and 347 transitions. [2021-03-26 00:47:06,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8032407407407407 [2021-03-26 00:47:06,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2021-03-26 00:47:06,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2021-03-26 00:47:06,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:06,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2021-03-26 00:47:06,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:06,950 INFO L185 Difference]: Start difference. First operand has 53 places, 30 transitions, 242 flow. Second operand 3 states and 347 transitions. [2021-03-26 00:47:06,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 29 transitions, 237 flow [2021-03-26 00:47:06,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 29 transitions, 207 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-26 00:47:06,952 INFO L241 Difference]: Finished difference. Result has 50 places, 24 transitions, 146 flow [2021-03-26 00:47:06,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2021-03-26 00:47:06,952 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:47:06,952 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:06,953 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 24 transitions, 146 flow [2021-03-26 00:47:06,953 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 24 transitions, 146 flow [2021-03-26 00:47:06,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 24 transitions, 146 flow [2021-03-26 00:47:06,956 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-03-26 00:47:06,956 INFO L130 PetriNetUnfolder]: For 91/109 co-relation queries the response was YES. [2021-03-26 00:47:06,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 29 events. 5/29 cut-off events. For 91/109 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 91. Up to 10 conditions per place. [2021-03-26 00:47:06,957 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 00:47:07,070 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-26 00:47:07,070 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:47:07,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-26 00:47:07,071 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 151 flow [2021-03-26 00:47:07,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 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) [2021-03-26 00:47:07,071 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:07,071 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:07,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:47:07,071 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1525716478, now seen corresponding path program 1 times [2021-03-26 00:47:07,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:07,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574430385] [2021-03-26 00:47:07,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:07,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:07,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:07,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:07,127 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:47:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:47:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:07,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574430385] [2021-03-26 00:47:07,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:07,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:07,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088890177] [2021-03-26 00:47:07,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:47:07,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:07,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:47:07,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:47:07,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 147 [2021-03-26 00:47:07,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:07,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:07,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 147 [2021-03-26 00:47:07,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:07,163 INFO L129 PetriNetUnfolder]: 5/30 cut-off events. [2021-03-26 00:47:07,164 INFO L130 PetriNetUnfolder]: For 137/152 co-relation queries the response was YES. [2021-03-26 00:47:07,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 30 events. 5/30 cut-off events. For 137/152 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 49 event pairs, 0 based on Foata normal form. 5/35 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2021-03-26 00:47:07,164 INFO L132 encePairwiseOnDemand]: 139/147 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-03-26 00:47:07,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 155 flow [2021-03-26 00:47:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:47:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:47:07,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 720 transitions. [2021-03-26 00:47:07,166 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8163265306122449 [2021-03-26 00:47:07,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 720 transitions. [2021-03-26 00:47:07,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 720 transitions. [2021-03-26 00:47:07,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:07,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 720 transitions. [2021-03-26 00:47:07,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:07,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:07,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:07,170 INFO L185 Difference]: Start difference. First operand has 46 places, 23 transitions, 151 flow. Second operand 6 states and 720 transitions. [2021-03-26 00:47:07,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 155 flow [2021-03-26 00:47:07,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 22 transitions, 104 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-26 00:47:07,171 INFO L241 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2021-03-26 00:47:07,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2021-03-26 00:47:07,171 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:07,171 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:07,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 0 transitions, 0 flow [2021-03-26 00:47:07,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 0 transitions, 0 flow [2021-03-26 00:47:07,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:07,172 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:47:07,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:07,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:47:07,172 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:47:07,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:07,173 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:07,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 00:47:07,175 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:07,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:07,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:47:07,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:47:07 BasicIcfg [2021-03-26 00:47:07,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:47:07,180 INFO L168 Benchmark]: Toolchain (without parser) took 6050.92 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 234.1 MB in the beginning and 187.4 MB in the end (delta: 46.7 MB). Peak memory consumption was 247.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:07,180 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory was 237.3 MB in the beginning and 237.2 MB in the end (delta: 92.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:07,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.15 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.1 MB in the beginning and 341.3 MB in the end (delta: -107.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:07,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.81 ms. Allocated memory is still 379.6 MB. Free memory was 341.3 MB in the beginning and 339.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:07,180 INFO L168 Benchmark]: Boogie Preprocessor took 42.55 ms. Allocated memory is still 379.6 MB. Free memory was 339.4 MB in the beginning and 337.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:07,181 INFO L168 Benchmark]: RCFGBuilder took 390.08 ms. Allocated memory is still 379.6 MB. Free memory was 337.8 MB in the beginning and 314.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:07,181 INFO L168 Benchmark]: TraceAbstraction took 5064.45 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 313.7 MB in the beginning and 187.4 MB in the end (delta: 126.3 MB). Peak memory consumption was 204.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:07,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory was 237.3 MB in the beginning and 237.2 MB in the end (delta: 92.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 496.15 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.1 MB in the beginning and 341.3 MB in the end (delta: -107.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.81 ms. Allocated memory is still 379.6 MB. Free memory was 341.3 MB in the beginning and 339.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.55 ms. Allocated memory is still 379.6 MB. Free memory was 339.4 MB in the beginning and 337.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 390.08 ms. Allocated memory is still 379.6 MB. Free memory was 337.8 MB in the beginning and 314.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5064.45 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 313.7 MB in the beginning and 187.4 MB in the end (delta: 126.3 MB). Peak memory consumption was 204.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1410.0ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1029, positive: 995, positive conditional: 995, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 867, positive: 829, positive conditional: 0, positive unconditional: 829, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1029, positive: 154, positive conditional: 154, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 867, unknown conditional: 867, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 34, Positive conditional cache size: 34, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 620.6ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 92, negative conditional: 24, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 202, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 67, unknown conditional: 67, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 67, Positive conditional cache size: 67, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 477.8ms, 38 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 160, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 98, Positive conditional cache size: 98, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.3ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 133 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 13, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 13, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 86, Positive conditional cache size: 86, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 38 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 92, Positive conditional cache size: 92, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 50 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 97, Positive conditional cache size: 97, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 43 PlacesBefore, 43 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 13, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 13, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 120, Positive conditional cache size: 120, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 38 TransitionsBefore, 37 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 118, Positive conditional cache size: 118, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.2ms, 54 PlacesBefore, 54 PlacesAfterwards, 42 TransitionsBefore, 41 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 118, Positive conditional cache size: 118, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 57 PlacesBefore, 57 PlacesAfterwards, 46 TransitionsBefore, 45 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 118, Positive conditional cache size: 118, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.0ms, 55 PlacesBefore, 53 PlacesAfterwards, 31 TransitionsBefore, 30 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 41, unknown conditional: 41, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 68, Positive conditional cache size: 68, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 117.0ms, 50 PlacesBefore, 46 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5ms, 38 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4969.3ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 730.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1504.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 47 SDslu, 26 SDs, 0 SdLazy, 212 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 154.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=390occurred in iteration=9, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.7ms SsaConstructionTime, 195.2ms SatisfiabilityAnalysisTime, 555.2ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...